I see your point now. Wow. This NREL study from 2013 has a number that has 1 MWac on 5.8 acres for fixed tilt utility scale solar. Of course, this study is older and may doesn't incorporate the average efficiency gains in mass produced PV panels since 2013, but it's still closer to what you have. I had done the math on this several years earlier but completely forgotten what I had. lol It will be interesting to see how the technology improves over time. The acres per MWac should be lower now because of efficiency gains, but i'm too lazy to look that up. I've never believed that 100% renewables without majority hydro is really possible - starts looking more like an expensive Rube Goldberg machine than it does a functioning electrical grid.
https://www.nrel.gov/docs/fy13osti/56290.pdf
Oh, I also agree that mandates and taxes won't help things out either. It would be a terrible idea to cripple the economy to deal with climate change. I'm still frustrated that nuclear is effectively banned in the US because of ridiculous regulations. Random question. Do you agree with Austrian Economics?