Perhaps. However, giving up entirely and just calling MLs fascists is just going to get you called a lib. That’s why I pointed out that MLism has a strong theoretical basis, ie one doesn’t just happen into being an ML casually, they read theoretical texts and try to rationalize their beliefs.
If you can take advantage of what leads someone to believing something, you can show them alternatives.
For example, you can show them that currently, in America, Anarchists have more effective and tangible praxis than Marxist-Leninist parties have been, and according to ML belief, a mass movement is the only true way to upset the status quo, and as such they should consider supporting Anarchism. Baby steps, and all.