Social Media. Cancerous all of it. Psyops and psychological manipulation. If you studied psychology and sociology you would know there is a huge stage 4 cancer in society and it is social media.
Social Media 100%.
Facial recognition technology. Not only is it not as perfect as people claim in identifying people, but some countries are using it to attack the LGBT since it was discovered the LGBT have different variances in facial features. And yet that’s not even 100% perfect, so now you have a bad technology for a negative purpose repurposed into another negative purpose that it’s causing collateral damage with because it’s as awful at that as the first thing.
proof-of-work blockchains. instead of a utopian decentralized currency we have a utopia for scammers and day traders, and uses a ton of energy at a time when we need to conserve to combat global warming.