progressive liberals outnumber Leninists and are far less likely to deliberately betray us.

Progressive liberals eventually realize the conflict between capitalism and progress and drop the liberalism. Then they either check out or they join whatever group is organizing in their area. Ideology is secondary to building power and actually improving people's lives.

That’s why MLs always equate Liberalism with fascism; if people can ally with Liberals MLs have basically nothing they can bring to a coalition, and so they can’t seize power

The reason liberalism is equated with fascism is that fascism is a failure mode of liberalism; as the contradictions of capitalism grow, liberals either stop supporting capitalism and thus are no longer liberals or drop any pretense of freedom for the working class and apply methods typically reserved for colonies at home to protect capitalism.