AnSyn.

Now a Luxemburgist with heavy ML sympathies, but I don't believe tendencies are anything more than jumping off points to respond to material conditions. If a vanguard party is needed, one of the orgs trying to Vanguard will become it, if it can form directly from workers orgs that will happen.

The important thing is that the workers are as organised as possible and that there is a diversity of initial approaches to synthesize.