I agree with you. I noticed a couple things when I retired and came back to sub (no lesson plans, no grading, etc).
1. Technology as a teaching tool- rarely makes it better, it's just another way of presenting it to the students. And it takes much longer to prepare a lesson using technological tools.
2. Social Media/kids on their phones- this is a parent issue- kids get very little sleep because they're on SM all night. Their faces are in their screens as often as possible and I've seen kids literally shaking when they can't be looking at their phone.
3. Their world is so "enclosed" in their own social media world that they simply do not care about anything else. Nothing interests them. I can tell you that kids used to get excited when we studied Ancient Greece and Rome and the Medieval Period and the World Wars.
Now, they go through the motions just to get a grade and many of them don't even do that.
When I retired someone asked me (on Facebook) what one piece of advice I would give to a parent. It was- DO NOT get your child a smart phone.