okay so shut down AI datacenters (reduce demand)

Lots of people think that these datacenters are doing important things - and some of them might actually be right! So this isn’t going to happen. What could happen is simply instituting a tiered pricing system for electricity, where the more electicity you use, the higher the price you pay per kwh. Most places already have such a system in place for water usage. Then (ideally) we’d reinvest the profits into something like additional renewable capacity.

and smuggle in the cheap chinese solar panels just sitting in storage (increase supply)

I mean… I have to wonder why these are sitting in storage. And the answer is probably that they are defective or underperforming or are known to cause cancer in the state of California. The company that made them presumably wants to sell them, and there is certainly no shortage of people around the world who would like to buy them if the price was right. People don’t just hoard warehouses full of solar panels for no reason.