-— the Priolas asked and answered a question about what parents should do in the case where their son wants to bring his homosexual partner to a Christmas dinner where their grandchildren will be present. -—
This is a pastoral question. It seems out of place, unless someone is trying to score propaganda points, or getting the camel’s nose into the tent.
What do you do? Everyone agrees it's a complicated thing. I think if it were my kid it would depend. Do the kid and the grand kids see each other all the time or is this a just holidays sort of arrangement?
If it's JUST Christmas dinner I would let homosexual son bring friend to dinner with the explicit instructions that they act like two platonic friends in front of my grandchildren. No hugging, handholding, kissing, sitting to close on the couch etc.
If they all live nearby the grand kids probably already know he's gay and maybe he and his friend should make other arrangements for dinner.