Its true it seems that millennials is less educated and probably the worst generation where even in social media their post are annoying they're main concern in life is sex, drugs and alcohol. They spend more time in online games, burning their money doing meth & alcohol and social media than spending more time in productive skill development or investing their futures into something like crypto.
It will be wrong to label an entire demographic group like this. Although I would agree with some parts of your post, I have to say that many of the millennials are even more skillful than the older age groups. I am working in the IT industry and many of the millennials who have recently joined my company are very knowledgeable in coding and programming.
A lot of people only focus on bad things. Maybe that is can be used as something that made us care with millenials in near us. I mean, it is almost right if a lot of millenials for now look worse than older age groups. But positive thing about when a lot of people know it, maybe they can change the millenials to be better.
Social media is toxic now. You'll even see a 13-year old kid posting about love and sex like what the hell has happened to this generation but I come to think of Online Identity, today's generation people are often have online identity different from who they really are. What we see in social media is maybe a distorted reality of them, there are millions of young people who excels in different fields. I even read about a 9 year old who is already graduating in college. There's a lot of people these days that has a critical mind and talent, you just gotta let them show it.