Because it’s not pay to win, people are just salty. Get someone to teach you Commander, its a casual format that’s a lot of fun to play even with budget decks. I don’t put expensive cards in any of my decks and I win plenty. My wife runs a deck that I built her for only slightly more than the cost of a basic preconstructed deck and she’s become kill on sight among the people she regularly plays with because it’s so strong.