if a source is uncompetitive in the market you wouldn't need to ban it
It has a monopoly power, and deep hands in many governments. They are a multi trillion dollar industry that can afford to spread competition. This is why there needs to be extra effort
& conservatives want to ban twitter & facebook bc muh monopoly. gov is not your personal bludgeon. there are people in society/market that will do things you dont like. get over it.
As it is Tesla is going to be a major disrupter despite facing so many external attacks form those invested in the industries he is looking to compete with.
As it is the free market can beat the fossil fuel industry. The market is not free though. They are a multitrillion dollar industry that are deeply involved with governments.