Don’t hold opinions on things that will have some scientific fact behind it.
Opinions are relegated to topics that have no actual truth behind them, e.g. “I think blue is the best color.”
You can say you don’t like people who are elitist, but you can’t go make claims about them from a psychological standpoint when there is a factual posture to have. Just because your experience and personal anecdotes lead you to think something is one way or sway your feelings doesn’t make it valid or mean there isn’t a truth (that you just don’t happen to know yet) out there about the topic.