You're on Lemmy, outside of explicitly anti-communist spaces like Lemmy.world you're going to find more leftists.
Leftists referring to Liberals negatively is standard leftism, as Liberals support the Capitalist status quo and stand in the way of progress. The fact that Republicans are even further right than Liberals and use Lib as a slur for people less right wing does not mean leftists are without "self-awareness."
You could read theory if you want to, plenty of people would be willing to share tips and pointers, then you wouldn't have to rely on edgeless snark.