I was a refugee of war that immigrated to the United States and survived off of food stamps and public housing until we got on our feet. we'd be considered pretty well off today, certainly in the top 5-10% of income earners.
Natural selection... More like dumb luck your ignorant persona was born privileged and not having to work your way up through the social structure of a foreign country several times. If it wasn't for public assistance we'd be dead or arrested for god knows what we would have done to put food on the table.
Social services exist to keep you safe from the poor just as much as they exist to keep the poor able to move upward through socioeconomic class