Sadly voting didn't fail you. US is in the same predicament UK was in after Brexit. Complacency at the expected outcome, a belief that some people couldn't be so stupid as to vote for Trump/Brexit and yet, they did in the majority.
Regardless of how fucked up the election process is, inany countries I'm not singling out the US, that is the reason that you feel failed, look at your countrymen that swallowed the snake oil and ask the question why?
VAT is applied to all goods irrelevant of origination. Think of it as a federal sales tax instead of a state sales tax.
There are different rates dependent on the goods and some items are VAT free (again this has nothing to do with origin but to do with the product} i.e. I'm fairly sure that in UK children's clothes are either exempt or VAt at a lower rate.