I'm not American so it's a moot point, but some of those points of unity would rub me the wrong way, as someone stuck firmly between Luxembourgist and ML camps. Not so much in the substance but in the tone.

That's an extremely hardline interpretation of DemCent for instance. And the somewhat over-forceful denouncing of other tendencies as well would make me wary, especially as someone who's dealt with real sectarians like the Spartacists before.

EDIT: I mean dude, this here is not a great look.

"We will defend that legacy against defamation by revisionists, Capitalists, Trotskyites, Maoists, Social Democrats, anarchists, Cold War liberal bourgeois and petty bourgeoisie “phony left” radicals that undermine the revolutionary history and struggle of Marxist-Leninist theory and practice. We reject the so-called "21st century socialism" and Euro- communism as revisionist attempts to promote reformist schemes and "market socialism" over true revolutionary struggle and socialist collectivization. We reject all unscientific and dogmatic vulgar Marxism."