Perhaps they should only take chartered flights. Then they can sit or not sit next to anybody they choose.
This reminds me years ago, in a business meeting, I, as a woman, offered to shake hands with a Rabbi when he showed up at a food production sight to offer Kosher approval.
I have chuckled many times over the years at his “aghast” look on his face. BWAAAA.
We did get the Kosher approval, after we paid them the usual bribe. Oh wait..... usual fees.