zahavasdad-I wouldn’t consider inviting them over for a number of reasons. One, is that my children would probably misread it as an approval of their behavior. Also, my son would absolutely forbid it bc he doesn’t want us anywhere near his chevra. I also wouldn’t be able to do kiruv with kids who are helping my son to go off the derech. I do, however, pray for all of them to do teshuva.
Its NOT Approval. Its Harm reduction. Lets say they are hanging out at the Local McDonalds. Would you rather him hang out there or in your back yard. You would NOT interfer. You would NOT tell them what to do. Its not about Kiruv at all. Its about minimizing the harm done.