The first part is currently happening under Harris/Biden, and while the second part may happen, again, you must put aside any risk to yourself to not be responsible for the harm of others.
If you give a gun to a mass murderer it does not matter if they shoot you too. If you refuse to give said gun but they get it anyway that’s not on you, regardless of the outcome.
That’s a cute thought, but if that’s true, then let’s go ahead and completely stop supporting Israel since we clearly have no effect either way, right?