Dofi, it’s a Jew’s responsibility to recognize, well, Dofi, when it is apparent. All of the above knowingly diverged from the mesoros they were given and incorporated either what they admitted themselves were non-Jewish ideologies (enlightenment and zionism, in the case of both rabbi yoshe ber and rabbi kook) or created completely new ideas within judaism(kiruvism, all jews are equal, god in a body, doing mitzvos to bring moshiach and/or because the rebbe says so, erasing sleeping in a sukkah, and much more from the Lubavitcher rebbe, and the idea that the frei are better than the frum due to their zeal for the “land” as believed by rabbi kook)
It’s not as if we need to disprove any of the above – it is on the mechadesh to prove new things, and when one admits that torah alone is not the source of their beliefs, those beliefs are automatically discarded.
But in their personal lives, all of the above were known to be scrupulous about halacha, and I have zero interest in condemning or accepting them as yirei shomayim – many people with yiras shomayim make mistakes, especially in a period of time when the yatzer hora for haskalah was unimaginably powerful…honestly, if i had lived in pre-war europe, who says I would have even stayed frum? I have no idea. I can only judge statements, not people.