Incels didn’t originate with 4chan, 4chan just gave them a more visible home than they had previously.

So cite which documents support the claim. If it’s so easy it shouldn’t be hard to do. You’re basically replying to a statement of that’s illegal and being asked to cite what is illegal by saying reference all of the legal caselaw. It may be technically correct but it’s useless. There is a reason academics and legal scholars say reference paragraph x of book y etc. if you can’t provide easy examples why would I buy your claim?

Put up or shut up.

If something that had already existed for 6 years when 4chan first opened can be said to originate from 4chan, then what can’t? Hell, large portions of internet culture as you know it for good or for ill were actually born out of the chaos of /b/, but your metric for “originating from 4chan” seems to be “do I think of it as negative and/or nihilistic, if yes then it must have originated from 4chan” rather than anything about where something actually started from.

Any definition in which incels originate from 4chan is so broad as to be meaningless. Basically every single part of Internet culture that didn’t exist prior to 2003 or became more prevalent after 2003 would also originate from 4chan. All of it.

By that logic nearly everything on the internet came from 4chan. Like, substantial parts of internet culture actually started on 4chan and bled outwards from there when the channers interacted with normies.