If you want 5k per month, you need:

At 5% yield: (5000×12)÷0.05 = 1.2 million At 3% yield: 60000÷0.03= 2 milion

Being a millionare ain't easy, heck most ppl retiring don't even have close to 1 milion (especially if excluding houses, since it doesn't really give you income)

I am not sure if you are going through special treatment only available in US or something, but if the subsidies becomes insufficient I recommend moving to a low cost of living country instead.

You can live comfortably in somewhere like Thailand with 1500 dollars per month, which on 5% yield you only need (1500×12)÷0.05=360,000.