Right, and all it will take is "major investments and changes in charging habits." Note those major investments are seldom accounted for when people talk about solar cost.
Speaking of which, California is 17% solar, 8% wind, and 7% hydro[1], and their retail electricity costs 19.9 cents/kWh.[2]
South Carolina is 58% nuclear, 0.1% solar, no wind, and 2% hydro,[3] and their retail electricity costs 12.9 cents/kWh.[2]
It's almost like solar is super cheap on the margins, but it's easier to make a cheap grid with lots of nuclear than lots of solar....nah, that can't be it.
[1] https://www.energy.ca.gov/data-reports/energy-almanac/califo...
[2] https://www.electricchoice.com/electricity-prices-by-state/