I agree that it is good to have compassion for wrong people, but it is not good to support and approve of what they are doing that is wrong.
Yes, Jesus loves them, but Jesus said to go and sin no more. But also He said let the one without sin cast the first stone; so we are not to throw stones at anyone, but we need to first be busy with seeing how we ourselves can be wrong.
So, while a group might be right about how someone else is wrong, they need to see however they themselves can be wrong, too.