You're making no sense here. On one hand, you're complaining about the lack of defense in Europe. On the other hand, you're going on about the cold war and how the cold war era is over, and so the defenses are no longer needed.
Yes, the graph shows that only five countries - including the US - are paying there fair share. I don't dispute that.
Countries have military bases abroad. That has little to with what the Soviet Union did a couple of decades ago. America is not the only country to have military bases abroad. It's hardly unique in that respect, and hardly gets the title of "Defender of the World" or even "Defender of Europe" simply for sticking a few military bases on the continent.
Personally, I'm fine with America deciding it wants to focus on itself. I'm not alone in that opinion right now. As Cuchcullan said, nobody will stop Trump if he decides to isolate himself. The majority of world leaders do not think much of him, and will not stop him. They are already not interested in renegotiating Paris with him, as he seems to want. They will not beg America to stick around.
You've made it quite clear who you support politically, and that's fine. But it's been quite clear for a long time - even pre-election - what his intentions were regarding healthcare, and they were not involving benevolent, cheap (or even free), universal healthcare coverage. If that's what you wanted, then it's not Trump that you should be supporting. Regardless, I'm not sure what this has to do with this anyway, or why you're even trying to start a "who has it worse".
And no, money that the US could be using is not funding state-sponsored healthcare in Europe.