so in this anarcho-capitalist utopia, instead of governments ruling, its corporations.

I agree philosophically with anarcho-capitalism, but it's not something that I think would ever work on a practical level.

A corporation cannot "rule". A company has no power of its own. Any amount of "power" that they are given is going to be given to them by consumers.

In today's system major corporations use their wealth to lobby the government and get special rules and regulations passed that favor them, while harming their competition.

There's so much wrong in the OP.

no internet because DARPA wasn't funded

Really? All the technological advancements that have been made throughout history by private entities, there's no possible way someone else would have created the internet?

Hope I don't die of heavy metal poisoning because there are no regulations regarding food safety

Because the best way to make money is for a company to willingly provide an unsafe product that literally kills their consumers?

Hope I don't get hit because there's no regulations requiring seat belts or airbags

It's ridiculous to think that not one single company would sell cars with safety features if the government didn't mandate it. If Company A decided to sell cars with no seat belts and airbags, but Company B did, who's car are you going to buy? Sure some people might go with Company A because the car may be cheaper and they want to save money. But those people have made a conscious choice to ignore their own personal safety.

Only make $800 a month because no labor laws.

Why do some fields today pay more than minimum wage? If labor and specialized skills had no inherent market value, wouldn't every company just pay the minimum wage? Why do doctors, engineers, computer scientists, teachers, etc. get paid well above minimum wage?

I'm not going to reply to every single point, but I think you get the picture.