In a world where buddy and Eric did end up together how do you think kitty and red would react
Surprised, but supportive!
I think the common take is that Red might need more time coming around to it than Kitty, but I think they both may initially struggle with letting go of who they thought their son was (and/or who they wanted him to be).
But ultimately, Red and Kitty love their kids. If Buddy was good to Eric and made him happy, they would be happy about that and would be welcoming towards their relationship. I daresay they both would get along with Buddy quite well.
I'm reminded of the episode where the new neighbors came over, and Red was outraged that they were Vikings fans - not that they were a gay couple. He judges people based on their morals (and sports teams), not their identity markers.
