What a bunch of crazy talk. Next I bet you're going to say something REALLY batshit, like we should stop offshoring all our manufacturing to China and build stuff here in USA, right?
Jokes aside- you're quite right, but with one issue- making solar panels has a chemical environmental impact. If China wants to trash their environment to build our solar panels cheap, let them. Other than that I 100% agree we should be buying the tech and setting up our own manufacturing lines.