alt Hacker News> move somewhere more willing to respect international law?
Some of these sanctions are required by international law (i.e. sanctions imposed by UNSC). For the other ones, international law generally lets countries have whatever trade policy they see fit including sanctions, unless they violate some other rule of international law or treaty obligation.
Sanctioning the ICC obviously has nothing to do with trade policy.
The USA signed the Rome Statute but never ratified it, and then withdrew its signatory status. There's an argument to be made that there was a treaty obligation there, but it's pretty weak.