Because "both sides do it," the existence of one thing naturally implies the existence of another identical thing on the opposite side of the political spectrum. Naturally, if there is an "alt-right" that is racist and bad, there must also be an "alt-left," of identical size, tactics, and general ideology. Kingpoleon also believes that the existence of whales implies huge bats.
I presume SJWs, and those like Lena Dunham, are not bad?
lmao of course not, at least when the alternative is literal fascism
The alternative is something so vague in its definition as to be largely unproductive as a descriptor? Good to know.