The flip side is that you can always define any supplier as a monopoly too. Apple have a monopoly on the supply of IOS and devices running IOS. Semantic definitions of monopoly aren't terribly useful. Budweiser have a monopoly on bud light. Budweiser probably can't use their market power to make miller taste worse than it does.
I didn't much care for Microsoft's anti-competitive behavior, didn't care for the stories from the grey-beard's about IBM's before that. Maybe you've heard of standard oil. I don't care for apple's anti-competitive behavior either. Microsoft and IBM always had plenty of people who defended them too. I didn't need to give Microsoft 30% (is it?) of my sales revenue to sell software that is run by my customer on a microsoft operating system. I wonder if the general reaction would have been much different if microsoft had tried charging a significant percentage of sales revenue for all software vendors selling software that ran on windows in late 90s and early 00s
I remember being taught about YKK, a monopoly producer of zips, they kept their monopoly by producing good quality cheap zips. The profit made was enough that they could stay in business but not enough that it was worth other companies expending capital to get into the market.
Monopoly is one state of the market on a spectrum in a capitalist economy, it is neither good or bad it just is.
I don't know what your comment about "anti-trust law being about more than monopolies" is supposed to mean. It says nothing, and furthermore says nothing with an authority to which you are not entitled, being not an antitrust law expert. So your unsupported and unreasonable claims should be discounted accordingly.
But have a read on the various pages written by experts and come up with arguments against what I said instead of just trying to attack my credibility.
Whether or not I'm a subject expert or not has no bearing on that. I suspect that the answer is 'probably not', but I have seen weirder lawsuits being won. The bar in anti-trust cases is very high but there are multiple standards of proof and multiple instances of potentially anti-competitive behaviour.
Lets say there was a device that allowed you to pay tolls from your car in bitcoin. GM including a version of that in their cars would not dominate the market. It would diminish it, but not devastate. But lets say GM sold 80% of the cars in the world. Even then, including the device wouldn't be a violation of anti-trust.
Through the early 90s, MS did this often, Media Players, Disk Compression, Defrag, the list goes on and on.
But, if GM had 95% of the car market, and included a device that only paid in fiat currency, and it was 'artificially' tied into the ignition computer, so removing it made the cars useless. Then had the device subtly interfere with any alternate device. Finally, there was evidence, (emails from CEOs, VPS) that GM did this with the sole purpose of preventing BitCoin as a currency. Then you'll understand the scope of M$'s efforts in the browser wars, and what it took to finally get them at antitrust.