He's 100% right and anyone on social media with a set of eyes can see this. Facebook was GREAT in its initial stages when it was just pictures, a profile, and a status update. Once it turned into a platform where the entire population can interact over public articles and comments, is when it went south. Instagram is in the same boat. In the bodybuilding world, there is so much hate and confrontation being spewed as a result.
The problem is you HAVE to have social media to be a normal person in society today. I would NEVER delete my accounts because I would feel so disconnected from the world. It's become the top source of news and personal interactions. If someone is having a party, forget about hearing about it if you're not on facebook because you won't receive the invite on there.
It has created an epidemic of depression and confrontation between people. It has widened the political divide, and given every no name idiot a public opinion.
You can go out on a date with someone and have a great time together. Then if they see your social media after, they could find one or two pictures they don't like and you will never hear from them again. It's horrible in that aspect.
That being said, I use it properly so that it benefits me, but there are so many downsides. Simply not having it is not the answer for most people though. We have to adapt to the world.