It's a little more insidious.
The push to destroy Arch sets the groundwork/process by which the libshits/commies can fast-track the destruction of other lorefags/paypiggies who refuse to tow the line.
Once they find something that works, they'll keep on using it until it stops working, then change tactics.
And of course, the rest of the dumb fucks think that if they just denounce Arch or help destroy him, that everything will go back to being nice and friendly, so they facilitate the process by being compliant chickenshits who just want to grillpaint.
The point is not the accusation (racist/sexist/homophobe/etc.); the point is getting the result they want.