1. Vote for politicians that support financial regulation.

2. Re-balance your retirement if you are able. Move S&P into other funds.

3. Buy put options for stocks you don't want to own.

4. Ask Luigi Mangione for more suggestions.

I think no one cares. The SEC regulates this stuff and they’re too busy wasting time on things that don’t matter. It’s an agency run by appointees of the president. So the only thing that would work is lobbying (bribing) the president for more than Musk.