How do you prevent monopoly capitalism under a minimalist state?
The answer is: you don’t — which is “working as intended” to a libertarian. Both because their contempt for the government is so great they would sacrifice our very national treasures if it meant squeezing another cent out of the public coffers, and because they are fans of monopoly capitalism. Greed is good — so what if the invisible hand must be made to slap around the little guy? Money is a religion, and these people are True Believers.
Luckey and Thiel are a particularly toxic breed of billionaire welfare queen, who outwardly revile government with every chance they get while having both sucked at its teat to make their fortunes, and currently making a luxe living on taxpayer largesse.
Thiel’s Paypal and Facebook-induced riches rode the coattails of the DARPA-created internet, while Luckey had his an exit to internet giant Facebook. Now Thiel helms creepy-AF data mining company Palantir, whose tentacles are wrapped all the way around the intelligence community’s various agencies, while Luckey’s Thiel-funded new startup Anduril is bidding for lucrative defense contracts to build Trump’s border wall.
If we’re lucky, Luckey will create some sort of VR seasteading community that sucks them both right in and traps them in a sort of Libertarian Matrix forever.