The free market is an ideal -- I do see where you're coming from. But the market is never free so long as there are corruptible people in government or the framework does not fairly protect freedoms, but does that mean we shouldn't strive to get as close to the 'ideal' of a free market?
For the Microsoft example in particular, they didn't benefit from government intervention until the government "punished" them, by forcing them to provide a more inclusive platform. Makes you wonder if 90% of the PC market would still belong to Microsoft if the government had not gotten involved... might have pushed us toward open source/Mac OS sooner. In the other case, Intel just plagued AMD with legal bills, which perhaps says something about the way our legal framework is set up (can't countersue to cover legal costs), but Intel always provided a superior product so it's a quite stretch to say it was a "malevolent" monopoly. So you're right, neither of those are really crony capitalist examples, but that doesn't mean they contradict my points on market freedom and ill-willed monopolies.
I challenge you to provide an example of a longstanding, malevolent monopoly that did not rely on government privilege.
As to the points on medical care, I assume you agree?