I don't have any problem with the US leading by example. I think market-based democracies have some flaws that can get pretty serious at times, but I also believe it's the least imperfect model. To that extent, I don't mind the US promoting trade. I don't think the alternative of us being ruled by Trump's buddy Vladimir Putin or the Chinese Communist Party are better, that's for sure.
I don't think the US has the right to bomb other countries into compliance, though, and even if they do, it doesn't work very well.
One of the biggest problems with market economies is that wealth tends to reproduce itself and further concentrate itself without some sort of outside redistributive force. Soon, you get a very highly-divided society with a few haves and many have-nots. It doesn't take a genius to see how this works. Having a lot of money to begin with makes it a lot easier to make more. You go to the best private schools, you make a lot of connections regardless of your actual talent, you can pay better lawyers to get you out of problems, you have more stability in starting your own business because you can out-last your competitors, etc. And eventually, you can pay lawmakers to make laws that favor you, and only you. You earn interest instead of paying it.
It's funny that you complain about interest rates, because that's what massive wealth inequality causes. Rich people have something that everybody needs and nobody has (money). So they get to charge people higher rates for borrowing it.
The solution to your problem isn't Trump. It's progressive taxation.