Binance is very popular and has some influence. Listing in Binance is, in most cases, a price increase, since there are colossal sales volumes. But you have rightly noticed that the last time the leadership of Binance is doing only to them profitable steps. Recently I could not withdraw money within 10 days. And not all tokens that I want to sell or buy are on this exchange.
They certainly have the right to prohibit anything in their territory. But there are a large number of alternative decentralized exchanges.