<< The US populace may get grumbly about spending on Ukraine, although realistically most people are just bored and have tuned out that news.
I chuckled, because I kinda see that. That said, that boredom will evaporate rather fast when that bored person is asked to pay even more, while given little to no support. And that ask is coming eventually.
US has been running on borrowed time for a while now. It managed to go into serious debt over Afghanistan and Iraq and still pretended it does not actually need to pay for it in terms of taxes. FED also obliged by keeping rates super low to keep the interest payments a non-issue. That is ending based on current trajectory.
As for tuning out, I think you are really onto something. I went out of my way to limit the amount of news I process.