That problem is entirely due to you choosing to run Google/Apple software on a network attached computer that you carry with you everywhere (even, apparently, to poo).
Mapping the source of radio signals is common and expected. Your Wifi router is basically a big bright lightbulb that flashes with a unique pattern, and can be seen through walls. You can't legitimately ask the rest of the world not to notice it, the same way you can't request that no one use your porch light as a landmark.
No. It shouldn't be expected that a $410b market cap company is out mapping this data and selling it to advertisers. Just because you can, doesn't mean you should. Not a trustworthy company.
There are enough AP's around me for Apple Maps to know if I'm in bed or having a poo. You can see the marker move.
More services like this are bad.
They already know who I am.
What could possibly go wrong?
Edit: when I say more services are bad like this I mean we should be opt-in for both collection and usage rather than opt out.