Trades often have unions and pensions for this very reason.
FDR just created a system by which politicians can 'bribe' a low skilled serf class for votes, which will ultimately lead to total collapse. Any 'floor' on zero skill wages either robs from skilled workers we actually DO need or just raises wages for everyone, making everything end up costing more, and drives inflation.
Are there flaws in a pure capitalist economy (if there is any such thing)? Sure. But there are definite flaws in a pure socialist system as well and I for sure know which system I'd rather live in. Radical and dramatic boosts to zero skill wages has bad effects for all of us. I'd rather they focus on cheaper education or protectionist policies to keep mid skill jobs in the US and accessible.
But really, there is a big chunk of folks that are just incapable of doing anything requiring any real effort, dedication, or focus. Fast food jobs, pumping gas, minding a parking garage gate, running a toll station, stuff like that is about all they are capable of. Paying them a "living wage" isn't the solution, they should just work longer because they certainly are not working harder/smarter.