Such a shame that so many U.S. citizens do not see the ramifications of their political decisions. Each one of these actions is a stepping stone the world is taking as a direct consequence of U.S. political negligence. And however difficult it was to render this consequence, it will be tenfold, or hundredfold, as difficult to reverse course.
One thing I’ve learned over the years is that people don't necessarily vote for the "best" candidate. Instead, they vote for the candidate who is "least bad" and do the minimum amount of damage to their interests. It is always a matter of compromise.
As a counter-example, you cannot expect an LGBT person to vote for a right-wing conservative who advocates against their own rights, even if that candidate makes the "right call" on every other issue.