Moral values in many countries, including US, may over time shift in a more socially progressive direction, due to an asymmetry. Arguments that move liberals in a more liberal direction may also sway conservatives, but arguments that move conservatives to be more conservative do not sway liberals.https://www.eurekalert.org/news-releases/1111149basically chuds are sociopaths, but you can often convince a chud to be a normal person, but on the flip side, you cant just convince normal liberal people to go full on billions must die at any meaningful rate, so ultimately linear progression of values ends up skewing towards "progressive" ideals