Or the same leader doesn’t unilaterally raise tarrffs, exempt companies that bow to him and tell other companies not to pass cost increases on to customers.
That doesn’t seem like the free market to me.
What is happening politically is a reflection of this concentration of power that naturally accumulated due to the dynamics of capitalism (and as they rose they influence the state to enable further concentration, also part of the natural life of actually existing capitalism).
In new markets, capitalism looks pretty good and the competition drives good deals for consumers and the barriers to entry are low. This devolves over time into a highly concentrated market with high barriers to entry. We've seen this story in our industry time and time again. Unfortunately, the new market state is transient, and the concentrated part is steady state. This is why people are always looking for new market opportunities.
And by “our” industry I assume you mean tech.
Which one of the tech companies is a “monopoly”?
There is nothing I can use Google for that I can’t use another company for and with Google Search, it isn’t even the best.
Amazon? I can order most things from other places or go into a physical store.
Apple? I can buy one of hundreds of different phones or computers
Microsoft? My life is completely Microsoft free.