Why should I trust people who do not believe in science on their "opinions" concerning scientific issues?

Why do certain people --- most of whom, proudly admit they do not believe in science theory, and public ally boast of thinking man walked around with dinosaurs and that the world is 4,000 years old and hold scientists with complete and TOTAL disdain - what do these people know that the rest of us (those with PhD's and people who have STUDIED in the field) don't? Oh, and "the Babble" isn't an answer.