Reactionaries have the most ahistorical sense of "human nature."

When we were hunter-gatherers, we had no individual possessions and all the food acquired was evenly shared between everyone in the community.

Fossils have shown that people who were injured had their bones healed by the community. So, there was a safety net.

So universal healthcare seems to be "human nature"

500,000 years ago, they found a fossil with a deformed skull that survived for 10 years. This means that a disabled, paralyzed child was given care by the community as long as they could!

Around, this time, they found a toothless fossil of an elderly man. This meant that his community would have had to chew his food for him and then he would have swallowed it!

Social Security is human nature!

Also, they gave each other dental services!

Community child-care. If the mother went out hunting or gathering or whatever, someone else would take care of the child.