My position is that it is not good for us. As some of you have mentioned, it does hijack the dopamine release in your brain and you can become dependent on it (although I think cases of real physical dependence on it are not as common as we are led to believe). I don't intend to delve deep into the subject of religion and theology on the matter, but there obviously are religious reasons for classifying it as immoral as well - lest we forget that, for example, in Paul's letter to the Corinthians, the original Greek word for "sexual immorality" is "porneia" which, along with "fornication" means prostitution, or payment in exchange for sexual acts. Whether these acts are something you partake in or witness on a screen, and whether you pay for them or whether whoever produces the videos pays the "actresses" for performing in them, I'd argue that the ultimate conclusion is that pornography is sexually immoral.
Regardless, pornography exists and saying that it oughtn't, or imagining a world where it doesn't, does not make it go away. It's continued existence leads to several questions, some of which I'll lay out here:
Why do many men access it at first?
Usually, in our modern society boys first access it at the turning point of adolescence as a result of curiosity about women that is rooted in hormonal changes. This is bad because it can arguably (but doesn't necessarily) instill an unrealistic view of women from an early age.
Why do many men continue to access it throughout their adolescence and into maturity?
Besides the aforementioned dopamine response to the onanism (I am presuming that watching pornography inherently implies masturbation), it's a shortcut for erotic love. Pornography effectively simulates the physical closeness of an intimate relationship, and at times the instinctual and animal aspect of coitus, which I would argue the vast majority of men (up to 99.99% of us, including jacked genius billionaires with level 100 charisma) cannot get at a whim. Furthermore men have no shortcut for emotional love - there is nothing analogous to the onanism for, say, imagining that a woman you care for cares for you in return, that you can confide in a woman who in return confides in you, that you can share your life with a woman, etc., so in the absence of these, all of these desires get rerouted to eros, the only type of love that can be effectively simulated. In short, in the absence of real love, and a real loved one, all men can really do by themselves is nurture eros. This doesn't mean there aren't chronically horny and obsessed individuals that only care about sex, but we call those people "homosexuals", who don't really care what they're copulating with as long as they're copulating (or imagining copulation).
Why do men continue to "consume" pornography even when they are in a romantic relationship?
Could be several things. They could just be obsessively erotic as mentioned above, but it could also be that their needs aren't being met (wherein "needs" does not necessarily imply sexual needs, as stated above I believe that for men the onanism is a shortcut for all types of romantic needs, for which there are no other shortcuts). Why are these needs not being met? Possibly because the man has no ability to express what he wants, afraid that being "emotionally open", as so many women claim to want, might make him seem excessively emotionally weak, fragile and needy, but it could also be because many women tend to become complacent in relationships and realistically care very little about what "their man" may want or need.
Why rely on the "shortcut" at all? Why not just find love?
For a lot of men it's a sort of "would that I could", which is not helped by the whole incel/blackpill discourse and especially it's emergence into the mainstream. Furthermore, as mentioned above even normal men that do get into relationships today find out that being in a relationship is often harder than not being in one. Are there perfect romantic relationships? Probably so, but I have seldom witnessed any, be it in my life, in my friends or my family. I do think that, in the West, dealing with women in general has gotten harder for men over the last century (both because the previous generations have been poor at teaching men to be men and because women have generally-speaking become less feminine)
Do I mean to justify the usage of pornography by this line of questioning? No.
All I mean to do is highlight that men have needs (not just sexual ones) that should be considered by women that want a happy relationship. A happy man leads to a happy woman, a happy woman does not lead to a happy man. I'd argue that all of the happenings of the last ~100+ years that have stripped masculinity of it's meaning and it's value, that put and continue to put men in a corner of powerlessness and even weakness, have led to the world we have today. How can women expect men not to behave aberrantly in an aberrant world? Also, when many women and womanly individuals say that porn consumption leads to transgenderism, they are confusing correlation for causation. Male weakness and femininity (in general, not just pertaining to transgenderism), porn "addiction" or overreliance, transgenderism and accompanying ideology, is all fruit of the same tree - the tree of so-called equality.
The real cause is straight-up satanism or, if you'd like to avoid religious terminology, the complete reversal of all natural, normative roles. The man becomes woman, the woman becomes man. The father becomes mother, the mother becomes father. The strong become weak, and the weak - strong.
My overall message, succinctly, is less about porn and more about the screeching harpies (both women and male feminists) that want to eat their cake and have it too - to be beholden to no regular concept of femininity but to simultaneously make demands of men. You cannot attempt to take men's power away and then blame them for everything bad in this world. Perhaps they should take the log out of their own eye, before blaming or complaining about others' faults, be they logs also, or mere specks.