Not sure what to pull out specifically from this article because it all has the feel of 'Old Man Yelling at Cloud' to me.
I'm not saying there are no valid points in here at all. I'm saying that complaining that social media is showing you memes and extrapolating that it is broken from that is not a good point. If you are disappointed in the conversations you are seeing on social media, change your social media strategy. I see more and more of the important conversations on Twitter than just memes and jokes but, I also see the sarcastic comments on the racist tweet of the day. I get great recommendations from YouTube on what to watch, I also get stupid recommendations. If you watch a bunch of a certain type of video and YouTube isn't surfacing more of that type of video then that is a problem and you should investigate that because in my experience YouTube's algorithm surfaces similar videos really well.
Now, get off my lawn with your contradicting opinion about how the internet works for you.