Here’s the real reason libertarians hate the idea. The welfare state is a check against servility towards the rich. A strong welfare state would give us the power to say Fuck You to our bosses — this is the power to say “I’m gonna work odd jobs for twenty hours a week while I work on my driftwood sculptures and play keyboards in my chillwave band. And I’ll still be able to go to the doctor and make rent.”
Calling yourself a libertarian today is a lot like wearing a mullet back in the nineteen eighties. It sends a clear signal: business up front, party in the back.