When scarcity happens, people become selfish, it’s survival of the strongest, and everything falls off the rails and naturally goes to capitalism and hoarding resources.

I take huge exception to this. That is absolutely not the case in my experience. Poor people are often much more generous with their time and resources than rich people. Any given billionaire could give up 1% of their wealth to end hunger in their country, but they don’t. Rich people could give up their holiday homes and empty rental properties to end homelessness, but they don’t. And yet poor people will volunteer in food co-ops, donate to homeless shelters, work extra hours to provide for their families.

naturally goes to capitalism

Capitalism is only around 300 years old, it is absolutely NOT a natural state of affairs for humans. It’s just another way of arranging the economy like mercantilism or socialism.