I’ve been called a tankie for saying Marxism is a valid strain of Socialism, so I have forever been skeptical whenever someone is called a tankie.

Do genuinely awful people exist on the “left,” like PatSocs and MAGA Communists? Yes, but they are by far the fringe.

Generally, leftists will agree when breaking up issues into their component parts, but will often disagree if posed at a macro level, which is why infighting is both common and largely worthless.