If, for a moment, we set aside the fact that Europe is strongly incentivised to depend less on the US, and US companies, it should worry us that so many sectors

If, for a moment, we set aside the fact that Europe is strongly incentivised to depend less on the US, and US companies, it should worry us that so many sectors are dominated by 1-3 or so players. One of the selling points for market capitalism, which we at least pretend to believe in, is efficient allocation of resources through competition. But when the market is dominated by de facto monopolies there exists no real competition and there is no real market. Even in the previous political climate this should, objectively, be deemed a problem. Having 90% of all eggs in one basket is neither good, nor does it constitute functioning market. I'm not sure what the Cloudflare market share is in the US, but if it is the same as in Europe, this is a problem for US companies as well.