Other countries are gonna be trying their best to defend against a fascist US, and in the end, you are going to suffer as well. Due to your own government. You will not be absolved for not doing the hard thing, your very own government will make sure of that, if things are allowed to progress. And I want to press on that point: You will not be safe. And it will get worse. And it won't be because of any other country.
Of course the rest of the world will be pissed at you too. Your country will be the aggressor against them. And they will not come to your rescue. Why would they, after all? They won't be the aggressor. They will be defending themselves against you.
If you do not take action when the time comes, you will be left behind. Not intentionally, not by other countries at least.
You will be the average German in Nazi Germany. And how exactly, did other countries and history look on the average German in the end? And how did it go, for the average German? How many of them do you think thought "if only I had done something sooner"?
I don't expect USA to stop the path it's heading. I am preparing for the inevitable. I do not mind you blaming others. That is what I expect. You are going to face the consequences of your actions, and so am I also going to face the consequences of your actions. I will just be trying my best to survive a potential WW3, or, ideally, the consequences of a US civil war, and a Europe that stands alone.