Competition between cryptos? If BTC miners band together to cause inflation, then people migrate to ETH or <insert other crypto>. BTC loses value, and them min

Competition between cryptos? If BTC miners band together to cause inflation, then people migrate to ETH or <insert other crypto>. BTC loses value, and them miners have 1. not gained value even with the extra 1M BTC per block, and 2. lost value because their mining rigs generate less value per energy unit.