Frum Yidden need to keep a distance from non frum (even family) and goyim.
Considering the fact that I am frum today, in good part, because of the influence of my frum relatives, I suppose you think it would have been better had they kept their distance from my mother, my sister and I and that all of us (and our children) remain not frum today.
I am forever thankful to them for their “sin” of keeping in touch with non-frum relatives.
The Wolf