Your 2nd point and obedient acceptance of the inevitability highlights just how much of a monopoly it is and how desperately we need alternatives. Or to just break up the monopoly.
That still ignores the fact that Google Docs is quality, usable, and much more readily available than LibreOffice/etc.
What we are really talking about here is the move from Microsoft tools to Google tools. That is a move that is entirely positive. Microsoft Office is one of the most - if not the most - prolific suites of proprietary tools in the world right now. Maintaining Windows is an absolute headache, especially when it is constantly being used by hundreds of children/teenagers. OS X is easier, but still not a good alternative. Out of the options most educators find available, Chromebooks are definitely the best.
To convince the next generation not to rely on Microsoft's proprietary software is a huge step in the right direction. While I share your concerns, they are not new, and I welcome this change.
Look at Google Photos now being far better so winning. This is how it is suppose to work.