I always blame iphone (here come the down votes). Appified the web. Brought everyone online who wasn't already online, causing everything to be dumbed down and sterilized. Absolutely accelerated the commercialization of the web, though that was already in motion for a while. Normalized lack of control and agency over electronic devices. It's always celebrated for bringing the web to everyone; that's the worst thing it's responsible for aside from the slave human labor used to make them.