Collective ownership of the Means of Production via a Worker state is in fact Socialism, and not Capitalism. If you eliminate the bourgeoisie, it is no longer Capitalism. It isn’t Anarchism either, but it’s still leftist in structure.
Lenin opposed the Worker councils and replaced them with a Union system. This is not the same as an outright replacement of a Socialist system for a Capitalist one, but a decentralized Socialist system for a more centralized Socialist system. This is still leftist, even if it’s more centralized. You disagree with it on the basis of centralization, not on whether or not it’s leftist.
As for Imperialism, Lemmygrad has a wiki where they go over why they don’t believe the current Russian Federation meets Lenin’s definition of Imperialism. I agree that it doesn’t meet Lenin’s definition, but I disagree with them that this justifies critically supporting Russia against NATO, which is Imperialist according to Lenin’s definitions. This, however, is a take based on Lenin’s analysis and a framework to oppose Imperialism and Capitalism, and can be argued against based on effectiveness, unlike fascists that enjoy Imperialism being Imperialism like the GOP.
I’d say they are in fact honest, and can be reasoned with. If you attempt to understand their views, you can more effectively take down some of their worse takes, like on Russia.