The first time I ever heard of 15-minute cities was through conspircy theories (I like learning about them) and you’re right that it is actually crazy. It’s the exact same anti-vaxx crowd, who also believe 5G is harmful and similar “theories”, lead by right-wing pundits and grifters whipping up outrage over nothing.
This is a great way to think about it… as much as I would love to completely drop the companies I hate like Microsoft or Google or Twitter, sometimes you have to use it for school/work/etc. (Good God I hate Teams.) Like food conglomerates it’s just far too hard for the majority of people to live off the big tech grid.