It’s also guaranteed to backfire - no judge who by definition deeply believes in the mission and legitimacy of the ICC is going to be deterred by these tactics.
Which Americans? I think it just upset only the Zionists, Epstein class, members of congress bought and paid for by Israel(AIPAC) including the US presidential administration, plus the boomers who've been brainwashed by decades of Zionist propaganda on TV, but I imagine a large part of US voter base, especially under-35s, don't agree with this if polled.
At least every American I know in Europe(not a representative sample size, I know) is vehemently against supporting what Israel is doing.
In short, the opinion of Americans is just not relevant to America's foreign policy decisions. Even a 100% anti-Zionist Congress would be unable to stop supporting the genocide.
Yes, they would be able to if the majority party actually wanted to. Trump could be impeached for so many things I can't count. It's not happening because Republican members of the house and senate don't want to or are afraid to.
This would apply no matter how justified I felt that kidnapping the leader of a nuclear state would somehow help world peace.
EDIT: And in fact we see this, Russia sanctions western politicians based on their support for Ukraine quite often