As shitty as it is, this country 1. Isn't designed in such a way that would allow a third-party candidate a genuine chance of winning and 2. Has too many centrists that will vote for Biden regardless. Trump has repeatedly garnered heavy support in Republican polls, so they're pretty much almost all in on him. Splitting the blue vote between Biden and whoever else will only lead to a Trump victory after which we might not even be ABLE to vote in 2028.
I'm legitimately having a panic attack. These airheaded anarcho-kiddies are genuinely going to land us all in camps.
biden's doing literally nothing to stop states from criminalizing lgbt people's existence 
their fears about a trump presidency are valid but i wish these libs would stop putting their hopes in the DNC when its clear they have zero interest in running a candidate that isn't complete dogshit
Not "valid" in the moral sense, but it would be a "valid" in the sense that people would consider it an interpretation, a horrible, awful one, but it would exist. We don't really pull this with anyone to our Right politically, nobody really gives a fuck that modern MAGA doesn't seem to have anything to do with Thomas Sowell or William F Buckley Jr.
But who sets the definition? With Marxism you do have the fact the ideology is named after a specific guy so you can argue people who claim to be "Marxist" but who's conceptualization of Marxism is too far from Marx's original ideas are operating in error, but even early anarchism had a lot of internal divisions and wildly different interpretation.