This is so incredibly wrong that it blows my mind.
SpaceX within 10 years make launch prices 5-10x cheaper, maybe that deserves them having a great position in the market for a while. This is exactly prove that in a capitalist system major gains in productivity can happen even to high capital industries. If anything this is just another example of capitalist greatness, an immigrant who literally sleeped in his office and showered at the gym 20 years ago is transforming Spaceflight.
People are so incredibly short sighted, a successful company, 4 years after people stop saying 'they will go bankrupt soon' its 'omg this company will literally control the WHOLE EARTH. The predictions of Karl Marx were correct, capital is inherently centralizing is correct, here comes SpaceX like the harbinger of materialism inherent truth.'
We have been threw this cycle so many times and it never makes much sense, but there never seem to be a shortage of people that will talk about anti-trust and breaking up any company that is successful. Go and to some historical research on Anti-Trust, if anything it was a political tool the Progressive Party to go after successful business.
And by absolutely no definition what so ever is SpaceX a monopoly in literally anything.