I mean... There definitely is a limit to this though. The right to split is a central part of democratic centralism as well as Marxism and the national question. A party can't hold 2 contradictory lines. Unity of tactics is essential and this was proven by the Bolsheviks in the lead up to and after the revolution.

It is up to contingent material circumstances what you do with that though obviously. If you feel that the cpusa or whichever party is the best way to go and is doing good work in your area I more than support you joining them. I feel like we need people to get involved in working class politics so whatever avenue or party they take in this moment to do so is good and I guess all these tactical and theoretical breaks will probably sort themselves out as the contradictions heighten and the dialectic evolves.... Right? Hopefully?