According to this TED talk, sustained power delivery from solar is less than 10 W / m^2, which means 1200 m^2 / capita for current US consumption, times 350 M people = 4200 Million m^2 = 420,000 km^2 = larger than Montana. And that is optimistic and doesn't account for storage/intermittency.
In reality, at least double the area of Texas needs to be covered with solar panels, plus we need to solve the storage problem, to solve the problem on renewables only.
Can Americans get by on less than 12 KW? Well, most people in other countries do, but, realistically, Americans don't like to be told to cut back, and the ones who consume above the average all the more so.
Similar constraints hold for wind.
Only nuclear power allows us to continue the growth economy. And while you and I might not approve of the growth economy, people will not willingly give it up very soon. (It would pretty much kill most people's retirement strategy, for one thing.) And very soon is when we need a solution.
So I have concluded that like it or not, we need nukes.