> US law only applies in the US.

Where US law applies varies by which law it is; there are US laws that apply only outside of the US [0], as well as US laws which have application both inside and outside the US.

[0] e.g., the federal torture statute, 18 U.S. Code § 2340A(a), “Whoever outside the United States commits or attempts to commit torture shall be fined under this title or imprisoned not more than 20 years, or both, and if death results to any person from conduct prohibited by this subsection, shall be punished by death or imprisoned for any term of years or for life.”

https://www.law.cornell.edu/uscode/text/18/2340A

that's just wishful thinking. US law applies world wide as long as Trump is willing to reach out and nab you. ask the Venezuelan fishermen.

That's not even US law, it's straight up murder outside of the law.

So was Kim Dot Com. Biden went after him anyway at the behest of big media.

I mean, its not like it was just Biden. His extradition proceedings took place during three different US presidential administrations. You might as well include Trump and Obama in there as well.

People pretend the GDPR applies to everyone, so why not the DMCA?

GDPR applies to you if you come to the EU to peddle your wares.

DCMA absolutely does apply to European firms selling their goods and services in the US.