It's horribly depressing, but the only people around to fight the actually evil people are slightly less evil people.
The only reason democrats, as a whole, are a better alternative to republicans is because they chose a different portion of the population to pander to in order to gain power.
It really fucking sucks.
It's not stupidity, it's loyalty to the level of irrationality.
You'll understand the current American right if you assume that they have no attachment to the meaning of their words, and the prime axiom they operate by is: "My team is always right".
They use words as weapons to convince those who can be swayed by them, but they themselves are immune to being swayed by words, and largely indifferent to their literal meaning - only their emotional content.
This is not to deify the left, they have their own problems.