There is a difference between not telling someone how to make Sarin/age-gating certain topics and censoring works of fiction or references to politicians and anyone who claims there is not is so full of shit they need to have their stomach pumped.
And?
"they did it so we're doing it to" is childish, worse than childish: infantile.
Looking into the social media footprints of people who are most vocal about censorship in various models it appears that for a great deal of them the primary problem they have is that they are being blocked from generating images of minors from japanese cartoons being raped.