Lake, i suppose opposing tzedukim, karaim, shabsai tzvi, reform, conservative, zionism, and every other bad idea was against the Torahs lesson from korach?
Was pinchas also guilty of not learning from korach?
The Torah tells us not to associate with reshoim and to actively oppose things that are against the Torah. It’s not live and let live. Any it’s not “machlokes” or “sinat chinam,” it’s defending the honor of Hashem.
Chazal say “if someone whispers in your ear, “do you oppose the wicked”, know that his heart is after them’ (megilah 6b)