People that criticize the United States for wanting to become isolationist, want the USA to engage in a war that can't be won and don't ever say anything about deadbeat nations that don't pay their share. If you are somewhere like Poland, germany France etc. it is in your direct intersection to become stringer now and sooner than that. Russia couldn't steam roll Ukraine and similarly the USA can only offer basic help. We don't have a huge military full of bad asses. We can send a couple of morbidly obese bureaucrats and missiles if you buy them.