Fair point. Just take the good and discard the rest.

Churches and religions as a general rule want to 'do good', but also have a variable amount of crazy kinda irremovably attached to them, which is the bit that is generally focused on too.

The dangerous part is where the 'doing good together' part slowly turns into normalizing the crazy part by 'social infection'.

As long as you don't end up being able to rationalize some behavior that, before you joined the group, you'd never have participated in or condoned.

Crazy justifies itself by small degrees.