This is the libertarian hand waving I complain about.

As long as you have a group with guns, companies will be paying that group to use their guns to enforce the rights of those companies. That's the most rational thing for a company to do. You can't out-innovate your competitors forever, you can't undercut their price forever and you can't provide better quality forever. Doing any of these things is very hard work, can be very expensive and you will lose eventually. It's a safer approach, once you win in a market to use those winnings to buy government-created barriers to entry against you're biggest enemy: new competition.

>Are you against voluntary society?

No, I assume it's inevitable given a large enough timescale. I have simply read enough to know that such a society is incompatible with capitalism.