In all seriousness to get the stans off of hardcore Copium someone needs to make a video about his face-reveal from a perspective that isn't mindlessly clout-chasing and simping for Dream.
I'm talking showing actual proof and images, title that can algorithm views from people searching "dream face", etc. That means showing Clayton's face, current trails, and disproving the arguments that they use as part of their endless Copium (bonus: call them fatphobic if they make excuses, using their own trump card against them).
Chances are they'll still dislike you to hell and fail to accept the truth (stans being total brainlets after all) but it's worth a try, and you can probably get the video out to some people who'd actually believe it.
Hell, if you blow up enough you might even get a reply from Dream, because knowing him he responds to any criticism of him because of how much of a fragile ego he has (and he's probably browsing farms rn, knowing him).
The main part should be showing the whole story and all proof, images, etc. rather than the extremely warped and tunnel-visioned views the majority of commentary channels have, though, because knowing the stans they'll still come up with some bullshit just to continue believing that Dream is their uwu twink boy.
In short, call them out directly for being absolute idiots who can only cope, seethe, and dilate.