Ah, the dreaded Google angst. I have felt it myself.
And while I have been tempted, in an occasional fit of pique, to totally disallow Google access the adage of not throwing the baby out with the wash water stays the impulse - so far. :)
I do, however, block many Google bots (and their so called not-a-bots a la preview totally and restrict even googlebot's access to many pages.
Further, I have never used Google Analytics, never signed up for WebmasterTools, etc.
I do use - and greatly appreciate - AdSense as a convenient revenue default but am quite happy to replace it as possible with direct advertising...
And I do appreciate the traffic that Google sends. While it is not the best converting it is a significant minority referer.
If your cut Google off choice is a sensible - for your site(s) - business model decision then ignore the aghast comments, if not I suggest spending some time with a punching bag and revisiting it.
p.s. I will miss reading your posts should they cease or decrease.