If we want to talk about the internet going wrong, we can talk about running out of IPV4 addresses, the garbage that DNS/BGP can be. The insecureness of SMTP etc. Yet from a technical standpoint, it has gotten amazing. There was a time https/ssl was not a thing, when everyone shuffled data via FTP, when telnet ruled, when NFS was world rw and rlogin/rhost was the way of things. So the net as a tool has gotten better to address it's weakness in relation to privacy(crypto), spam (captcha/ML), fakes news (ML)
Spam, Fake News, Trolls, Privacy Abuse etc is all about people. We can ask, how did the world/people get so wrong? But then, when we sit back and think about it, this is the world that brought us a few world wars and tons of other wars. All that crap going on over the net is annoying but nothing.
I'll take all the spam, fake news, trolls, ad stalking and attempt to capture my data than live through a war.