It can be solved by enforcing the laws already on the books. Insider trading is illegal.

If the laws are not enforced or selectively enforced you live in a nascent fascist state, not a democracy, what you need is a return to the rule of law, not the abolition of it.

I don't think anyone who has been paying attention over the last year could conclude that laws are not being selectively enforced. So I guess the next question is what options provide a realistic way of restoring justice.