Earlier quoted context omitted.
I'm failing to understand how a lesbian queen and a queen giving birth through artificial insemination is even related. That's just weird. Was the guy suggesting if a queen married to a man, say with sperm issues, who chose to use artificial insemination would somehow produce a child that wouldn't be considered royalty? Even despite being born of the queen? What an idiotic comparison. Although, I like the father/son…
He was just trying to come up with the most offensive sounding (to his conservative constituency) examples to shock. The father/son marriage thing of course could not happen for the same reason we don't have father/daughter marriages today: the laws have restrictions on close relatives marrying.
Kind of late on this, but as recent events have shown, such laws can be changed.