Either you’re an expert, or you’re not. The shades of grey seem to be continuously reduced until we’re left with only black and white.
When somebody dedicates their life, academically and professionally, to a particular subject matter, chances are they’ll grow to become, or already are, an expert. Subsequently, they should be respected as such.
On the other hand, everybody is entitled to an opinion. No more, no less. You are entitled to an opinion, but the world doesn’t owe you anything. If your opinion is in no way backed by science, it’s just that, an opinion.
Sometimes a naive and humble approach or input can shed new light on a complex problem. However, due to the immediate dismissal of such input, the gap seems to be increasing. Either you’re a nitwit or an expert. Leaving no room for moderation and transferable knowledge from one domain into another.