So are you 100% google free? No Android, no Google browser, no Gmail?
People who care doesn't use the defaults on almost anything, the big exception being Tails.
I don't agree with your point as everything falls between 0% and 100% and those numbers are actually very hard to get. To dismiss people just because they don't do 100% of something they are preaching is a fallacy to avoid the actual argument. Chrome does leak your data and it is not a choice for those who value their privacy even a little bit.
Just by using firefox with adblock plus and duckduckgo, will make you much less monitored than people using Chrome, even if you use google services.
I'm at least 95% google free. Firefox with adblock plus, disconnect and kaspersky ad blocking, search with duckduckgo or startpage in the few times when I really need google. Rooted android with no google apps and adblocking, never connecting to wifi or data networks (it is still a tracking device but, as far as we know, not for google), can't wait for a firefox phone. The weak link are the few youtube videos I watch now and then, always on a private tab to erase the cookies as soon as I get out (so they only get me by my dynamic IP, assuming they are keeping a log of that).