Sex positivity: Social services in urban and suburban areas affect how people choose to get pregnant and raise their children. If there was no welfare for single mothers, the risk of becoming one would be higher. This isn't to say the weight is all on women either, by the way, the existing system also disincentivizes men from sticking around because there are a shit-ton of ways to "game" the systems to get more money, better benefits, and even better healthcare for your children if the father isn't around. There are even cases where the parents are together, but have a "paper divorce" in order to get more benefits for the kids. Look into the "Welfare cliff" if you want more info on this.
Fat positivity: Similar to the above. Being a fatty-fat-fat isn't a barrier to money in urban areas. You can have a desk job, you can be a "content creator", or you can be so fat you get disability. The Simpsons episode "King Size Homer" is based on a real thing:
BLM: See image below. If you are in a racially homogeneous area, or hell, even a culturally homogeneous or even just harmonious one, such tricks are harder to pull. This is also why the powers that be get so mad at Hispanics in the US; The idea that someone with a certain color of skin might NOT agree with their prescribed party line is contrary towards the worldview being promoted.