And yet, Google started going down a similar path since December 2009 when they introduced personalized searches for non-logged-in users and nobody tries to block them.
<sarcasm>It also 100% breaks your social life, but maybe there's little of that left to disrupt anyway, amongst the typical target audience for these lists :P</sarcasm>
This is factually incorrect. Just because you haven't personally seen people block Google domains doesn't mean those people don't exist. I've blocked many Google domains for a long time. Not only was GA the first domain in my blacklist, it's also the domain that many of my non-technical friends/family wanted blocked.