Nom, there is a system for dealing with schisms which aren’t in regard to practical mitzvos (even though they always spill over…. Female rabbits(not a typo) always want to violate halacha)
That system is called hilchos deos, the chelek in halacha that some people pretend doesn’t exist. Violation of heresy is as big of a Boston violation of halacha as they come, and is grounds for schism.
Actually, it is grounds for separation more than other sins, as Chazal say “”shaani minus, d’mashchi(heresy is different, in that it draws people in)
Apikorsim who keep mitzvos are excluded from klal yisroel. They lose their olam haba, no matter what mitzvos they keep. They, including feminists, wage ideological war on chazal and everything holy. I do not envy their fate