I don't have a problem with this. My husband does a little. I've had to ask him to please not comment about it.
My son is a sensitive soul, but all boy. So I think it shocks my husband that he likes a "girls show". The boy that he became friends with in his class is high functioning autistic and had a really rough time adjusting to the new school year back in August. My son took it upon himself to help make the boy more comfortable and it really helped get the boy into class without problems. Now they are really close.
I know my son can handle it if the other kids make fun of him, but his friend, I worry about. I know that the boys will look out for each other though. His friend has already demonstrated that he's a good friend to my son by reporting to me about another boy hurting my son at school when my son wouldn't have told.
Anyways, what do you think about boys and My Little Pony?