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.