Sitting on the fence

I used to be a Marxist and I was quite well read on the theory but over time I slowly began to move away from the ideology due to its class reductionism and rejection of core ideas that I personally think are vital to a functioning society (the nation, traditional social values based off social evolution, etc). This led me first to national communism (a centrally planned economy but nationalist) and then eventually to the third-position when I became convinced of the benefits of competition but still believed a state was necessary to protect the interests of the people from completely free market capitalism.

Recently I have discovered the ideas of Hoppe and other schools of though including Dark Enlightenment and I have come to a dilemma – I cannot for the life of me find a way to practically debunk the ideas of natural order and argumentation ethics but I feel as if it goes against my views on morality and what I think a functioning society should be like leaving me stuck on the fence so I have a few questions:

How do you justify/defend/suggest a system to avoid corporations like Monsanto and DuPont (in the past with Teflon)?

How will the natural environment be protected from corporations in a fully anarchist society?

What will assume the position of leadership of a community under anarcho-capitalism?

What will prevent monopolies from forming?

What will prevent things like planned obsolescence?

Convince me that a society based on unchecked competition would be a more fulfilling and enjoyable place to live than one with community planned or checked competition as well as anything else that might get me off the fence.

Cheers fellas.