No Apologies;
Funny, you've not addressed the issue of people who venture unsound opinions due to a lack of knowledge or experienece having to put up with the fact their un-informed opinion might be silly to someone with relevent knowledge or experience.
I think that YOU are being condescending as YOU are assuming an air of superiority about subjects you don't seem not to know too much about. And then you make YOUR lack of knowledge SOMEONE ELSE'S fault. Poor ickle baby.
I think your ideology is influencing you here; if you conceed that people who spend their lives learning about a subject may know more about it than you (shock! horror!), you might actually have to listen to what they say about things you don't want to revise your opinion on.
So you attack the messengers to avoid listening to a message you can't deal with... boring, seen it before, please get a new trick...
Now, you probably won't like me saying this, but unless you can show that people who venture unsound opinions due to a lack of knowledge or experienece don't sound silly to someone with relevent knowledge or experience, it's just sour grapes...
Now, I must go... I saw some stone masons working on the church tower on the way to work. I am sure I can tell them how to do their job FAR better than they know...