Why didn't the solutions to acid rain and the ozone hole run into a conservative buzzsaw?

I can't speak to"acid rain" (but I think it too was at best overblown.) But the idea of a hole in the ozone was rather recently found and all the "solutions" benefited a chemical company whose patent on Freon was expiring. The natural cycle at the south pole is that ozone, which is created by the sun, dissipates during the winter. kinda obvious. The "hole" repairs itself in the summer. Guess what? A natural cycle.