well, clearly they didn't help towards Democracy, since being a religious material, they're more leaned towards Theocracy.
the 10 commandments of the Hebrew Bible have ethical considerations, like not lying, respect your neighbor and so on, and therefore, that seeped through to the Legal system, which is a system for Ethics and conduct in society, as well as the Political system.
Hinduism has a caste system. But a lot religions have a caste system.
If you mean President Andrew Jackson it would be a complete opposite on how he treat Native Americans from the ordinary Americans. He is known as the "Indian Killer" and "Sharp Knife" for his policies during his term especially the Indian Removal Act in which he removed the southern tribes forcefully and in a harsh and bloody way.
The answer is assembly and speech
The objectives of the Crusades were to check the spread of Islam, to retake control of the Holy Land, to conquer pagan areas, and to recapture formerly Christian territories. The Crusades were seen by many of their participants as a means of redemption and expiation for sins.
Hope this helps!