What makes you think that making the companies more powerful by removing restrictions from their operations would actually make them... less powerful?
Like I said, these shitty ideas were tried before. They resulted in huge monopolies, endemic corruption, poisoned food, indentured servitude, companies that paid employees with scrip instead of real money, child labor, employee abuse, etc. The whole reason why labor unions arose was to combat corporate power of the Gilded Age. The whole reason we got food safety laws was because companies were serving up dead rats and human bones in sausages. The whole reason why drugs need to be approved is because charlatans were selling poison as medicine. Read a book on the late 1800's one of these days.
These ideas have been tried. They result in a shitty society that benefits only the rich and powerful. We got rid of it, yet for some reason a bunch of nobodies like you want to bring it back.
The parties nominate the people. The "seriousness" of a party is already defined in law, so there can't be a Cheebs Party or whatever getting federal money.
How the parties decide to nominate is their own business. If they want to turn it into a clown show they can go right ahead. But once you get to the actual election level... no more.

