In all fairness, half the world hated you before. Now you just managed to convince the other half they were right.

The other half being your friends and allies though.

So basically you’ve been a POS the entire time but had some nice aspects to your character that you showed exlusively around your friends and family, but that facade you’ve now also dropped which made even them hate you.

Let’s not pretend that the allies liked the US before either. The US has been side-eyed by all of the developed world since at least the W. Bush era. It’s been more of a “that dude is a bully, but smile and nod and he’ll hopefully steal someone else’s lunch money instead of ours, and maybe Russia will think we’re friends and not steal our lunch money either”. Now he’s teaming up with Russia and going after everyone’s lunch money.

As a Canadian, the US was like a brother; maybe a bit rough around the edges bit still a close family bond. Now, it’s like the brother has a meth addiction and stole a bunch of your stuff. There’s a deep sense of betrayal that will last decades, assuming he goes into rehab and attones and doesn’t completely ruin things forever.