My dear dad passed away believing to the core that he had helped elect Clinton via his ignorant vote for Perot.
So, yes, it is still being said and believed by people who know what they are talking about.
Perot’s hatred for GHWB fueled his campaign, and fooled a lot of people.
I'm sorry for your loss.
Shortly before my own WWII vet father died, I showed him the information most of his generation was lacking vis-a-vis WWII, the role of FDR, etc.
He thanked me.