Then call me a terrible person who really doesn't give a fuck what you think of me.
There's no excusing what this guy did, but acting as if though there's no sympathy to be had for the guy's grievances and saying you're just as bad as he is if you have any is part of the fucking problem.
The incompatibility of Islam with the west has been a proven issue for long enough that it's problems are more than crystal clear to everybody who cares to look at them. Countless rapes, acid attacks, murders, etc. But if you talk about any of this in your social group, you're a racist. Your politicians ignore you in favor of the feel-good mainstream opinion. If you try to talk about it semi-anonymously online you're either met at best with dismissal and pilpul, at worst outright censorship, in either case with outright declarations again that there's something wrong with you for pointing out the reality of the situation as it has been for well over a decade at this point.
Then fucking absolute exceptional individuals want to wonder why people like this guy are driven to extremism. When the only place you're allowed to honestly confront the issue is on fucking 8/pol/ it's no god damn wonder. The absolute deterioration in the ability of people to speak honestly about such problems in the public discourse is only fueling this and further censorship is going to go exactly as the hopped-up asshole this thread is about wants it to: physical confrontations and violence.
This guy, while I don't believe in white nationalism or really ethnostatism (I'm a civnat), has some - I'll repeat because a lot of people on this site can't fucking read - some legitimate grievances. This kumbaya we-all-need-to-come-together bullshit that's been spewed in vain, and all of the aforementioned reactions to people trying to air their grievances about this problem, are doing nothing but continuing to ignore actual aggrieved individuals and thus fomenting their concern into anger, and that anger into hatred, all in the name of trying to keep alive the dream that "we're all just people and we can all get along if we really, really try". It's not working and the results of such an attitude are dozens of dead muslims in the middle of prayer and a censorship-hungry elite that are furiously masturbating at the ammunition they just received.
TL;DR This cold-blooded piece of shit, whilst being a cold-blooded piece of shit who deserves what he's going to get, did have some points. You're part of the problem if you insist that he didn't, or that any sympathies towards his ill will somehow make you an evil person.
PC culture is what fucking lead to this. If you think right-wing extremism is the bigger issue here you're a fucking idiot who's putting the cart before the horse.
The bigger issue here is that every single person's lives who use the internet are about to be made worse exactly as this fuckstick intended, and here we have dipshits railing on about how the results of this societal problem finally coming to a head are somehow also it's cause.
The problems that we're having in the west right now that both led to this and are most certainly going to lead to more of the same have a solution if people could stop acting as if though there's nothing to see here other than a deranged gunman who's motives should only be looked at in the most shallow of ways possible unless you're just like him, and talk about the issues at hand.
Step one imo should be to stop the fucking censorship and stigma surrounding the issue, but I'm just some dude on the internet.