Israel needs to immediately make clear that any country attempting to carry out these illegal warrants will be treated as if they attempted a kidnapping and hostage-taking of an Israeli official. And start sending Netanyahu around the world with a security force that can repel such an attempt.
Receiving countries can deny visas. Foreign citizens don't have a right to travel to other countries.
Such an action by the ICC I think would make Netanyahu persona non grata in most of Europe. They won't arrest him but that means to not having to arrest him and being exposed as hypocrites (a bunch of African states right now are salivating at the notion of European states being forced by law to arrest a foreign leader and choose not to), they just won't let him fly or travel there. The U.S. won't do anything to Netanyahu, but that's quite the long plane trip from Tel Aviv to New York and Netanyahu and his ministers would be even more effectively isolated internationally.
If Netanyahu flies to the U.S. and he is under ICC criminal charges and we choose to do nothing, then the U.S. can never say anything "ICC" again in any circumstance and have it be worth ten cents.
The official US position is that we have no obligations to the ICC and are further under no obligations to see the treaty's success. That's been more-or-less the American position since 2002. Hell, in 2021 Blinken made a statement about the State Department's "longstanding objection to the Court’s efforts to assert jurisdiction over personnel of non-States Parties such as the United States and Israel." So I doubt anyone would consider US statements on the ICC regarding Israelis to be relevant anyway.
The ICC can go piss up a rope. Israel should immediately make clear that any attempt to enforce this will be treated as a declaration of war. Hopefully, the rest of the world does the right thing and uses the warrants for Gallant and Netanyahu as toilet paper.
Probably wouldn't be a good idea for Israel to declare war on a NATO state creating an even bigger international crisis, most of alliance being Rome Statute signatories.
Bold of you to assume any of NATO country except Turkey would ever be dumb enough to try and enforce this. And it’s not like Netanyahu or Gallant have any compelling reason to go to Turkey, so Turkey won’t get a chance to attempt to do so.
This should be looked at in context of the Falklands War and the Rio Treaty. Argentina went to war over the Falklands with the UK and called for Rio Treaty defense. The U.S. declined saying Argentina were the aggressor. It doesn't matter if we think we're right, what matters is it made almost all of Latin America have the opinion the Rio Treaty was dead letter if the first time it was called for a non-American supported circumstance the Americans declined. If any state chooses not to enforce Rome Statute provisions from the first world just because it's convenient not to when this is a first world treaty, it shows the Rome Statute is dead letter and blows up that section of international law as being meaningless. Which again, Africa and most of the Global South would all be in favor of. I've stated elsewhere I think the International Criminal Court is a modern-day Kellogg-Briand Pact, but this might be the event that tips it over the edge and dismantle it if the chief backers choose to ignore the treaty they setup.