You are in Catholic central so perhaps there is not as much rational thought when it comes to one's religious beliefs as elsewhere. I do not know of any by name, but are you implying a general lack of intelligence in all Catholics? I do not think that that is the case.
Excuse me: if a Catholic believes in Jesus's resurrection, why shouldn't they believe in Mary's perpetual virginity too?
Why do you think they should believe one thing and not the other?
It doesn't make any sense.