>What exactly does "force to close" mean and how does it work in a free-market capitalist society then?
There's no "free-market capitalist society". Just a really-existing capitalist society (like "really-existing socialism" which touted one set of values, but practiced another), that sells to people the lie that markets are (and can be) free, when they aren't in most ways that matters.
This is a pedantic dead-end. The market is free enough. Regulation is not a problem, as already stated, provided the legislature is looking out for citizens and making the proper laws.
None of that has to do with Google being "forced to close" its Maps just because you don't like ads.
There's no "free-market capitalist society". Just a really-existing capitalist society (like "really-existing socialism" which touted one set of values, but practiced another), that sells to people the lie that markets are (and can be) free, when they aren't in most ways that matters.