I don't mind companies use non-free software, but I do mind if they do whatever they want with their users on a legal basis.
Not to mention government services, built with .NET, which yeah - you are obliged to use.
Now if you don't like being tracked at all time 1: enable privacy options for your Google account 2: avoid using Google Play and 3: start using duckduckgo
If you enable all your Google account privacy options - can you be sure that they do what they say they are doing? How do you know that? Can you be sure your information isn't being intercepted along the way?
If you trust Google then fine.
But if there is even the slightest amount of doubt then someone you trust (preferably you yourself) needs to audit the code and every pathway the data travels along before you can be absolutely sure.
Sure you may 100% trust someones open code, but if you don't have any insight in their backend once again it comes down to who you trust the most.
And why RMS only uses computers with free software firmware.
That has always been the goal for a mass surveillance machine like that which is very close to government.
And that tells you that it's time to fight back even harder.