We may well have a die off. The Boomer ranks will be thinned, in fact, are already thinning. This gets very messy because the generational tagging that developed in the 20th century has already become too compressed to make much sense. But there is a very clear shift to communal responsibility and diversity.
There is also a growing disgust with materialism (to use the philosophical nomenclature or dedicating your life to buying shit, in simple language). For Millennials and Gen Z, this may well have started as sour grapes since they have never really had confidence that any of this stuff would last for them but it has become an ingrained attitude now.
I think of Gen X (my kids, incidentally) as transitional becoming more open and diverse the closer they are to Millennials. Unfortunately, the forces of evil have been declared good as long you get yours and only other people lose out. There is always some of that in our species but when it has been made the ideal persona of this age things are not going to end well.