I agree with you 100%. Most people do not have the time or knowledge to become experts in all the fields they hold opinions in.

However, I actually AM being a bit of a snob as well. I'm proposing the deeply unpopular idea that not every person even has the capability to. It seems to have become a little-known fact that fifty percent of people are of below the median intelligence.

A lot of people are reluctant to admit that to themselves. They shouldn't be... It's an enormous relief when you finally realize that you don't have to have an opinion on everything.