Comment by trashtester

The EU, and especially some of the member countries, tend to go harder on cases where monopoly power is either misused or cause some harm to the general public.

The legal basis to intervene is there, but may be vague and open to interpretation.

For instance, a near-monopoly position might cause other regulations, like laws against unfair business practices to be interpreted more strictly than for other intermediaries:

https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02...

As long as the population within a jurisdiciton univerally supports the principles behind a ruling, finding some regulation to support it usually can be done.

In the US, there seems to be two factors that make it a lot harder to enforce such regulation (to the extent that they even exist there) - The fact that these companies are American and able to buy influence through lobbying and contributions - The current division in American politics, where virtually any position supported by one side automatically will be opposed by the other, causing paralysis