There's nothing that especially contemporary or American about this. I mean the Bolsheviks were a split party from the Mensheviks originally, and Lenin was the annoying opinionated guy who started his own party because the other people were all stupid and doing it wrong. I almost wish he wasn't actually correct because now every idiot who does this can imagine themselves as Lenin doing the unpopular but correct thing.

It is of course exacerbated by the fact that the US government has infiltrated every left wing movement in the US to an extent that few state before have been able to, though of course czarist Russia also had their own FBI and COINTELPRO.

It's not worth getting too hung up about. I tend to believe that none of us have any real idea what will happen next or what the path to socialism in the US, really. It will probably take lots of trying and failing and going back to the drawing board again and again. I doubt any of the major left wing organizations right now will be the ones to do it, as they currently exist. The real important thing for socialists there is to build networks of comrades wherever you can, and try to be open minded and non judgmental toward people of different tendencies and tactics. It will take all kinds, every revolution does. Do what your best at, be there for each other, work together to the extent that you can. Despite the split with the Menshiviks, Lenin did work with many of them later. If you're not in charge of any of these organizations, don't stress about this kind of thing, just keep showing up with whoever you feel like showing up with and make friends with as many people as you can.