Yeah I would refine that argument a bit and say the US will sometimes support (or rather, ally with) dictators when the only viable alternative is an arguably worse dictator. There aren't exactly a lot of democracies in the middle east we could be supporting instead.
there weren't a lot of democracies in the world until recently. And even a good many of them are effectively oligarchies.
if you want a good path to true improvement in civil rights (not a useless piece of paper or declaration) just track the wealth of a country. Wealthy countries that didn't rely on natural resources to get wealthy tend to treat their citizens better because, well, they make up the fcking economy.
most western countries had a shortcut to that via colonialism and slavery. It's very rich to then point at countries that don't have that cushion and talk about being morally superior.
Like supporting Al Qaeda to overthrow Assad.