about how he would fix a nonexistent problem

Nazi-Musk aside, Its not exactly a non-existent problem. Its just a very very small niche problem that doesn't justify the tremendous resources poured into creating it. Its also an old problem that doesn't exist much anymore.

There was a time when solar panels were pretty ugly and expensive. Those two things would deter a certain number of people from installing panels. So the idea of cheap solar panels that matched the traditional look some buyers wanted did exist. Heavy emphasis on some buyers because it was a pretty small pool to begin with. What really made solar shingles largely irrelevant was the dramatic drop in cost of regular panels, the drastic increase in performance of regular panels, and the noticeably improved aesthetics of all-black regular panels. So the prior tiny market for solar shingles shrank even more, and the costs of Tesla solar shingles continued to rise without any performance improvements. It was a tiny market before and its a nearly non-existent market now. Solar shingles are bad business.

Lastly, social attitudes changed and having solar panels on a roof switched largely from being seen as an eyesore to a point of pride for many. This last point isn't totally solved yet. My own housing community doesn't allow panels on the side of the house that faces the road...except in some circumstances (making the rule even more stupid).

I'm looking forward to the day when I can slap some panels on the other side of the house for even greater solar generation! I'm still have no interest in solar shingles though.