Lots of replies here, so not sure if you will read this. If you do, I hope it will help you in your career going forward.
"Pure JS" and "Mostly via jQuery" are actually at odds with each other in your description. jQuery itself is a huge library/framework and requires at least as much specific knowledge as any of the frameworks you list. The main difference for you is that you already know it, and so it seems simple/obvious/unencumbered/whatever. Understand that when people describe their framework of choice they are coming from exactly the same place you are. Their preferred setup seems simple, obvious, reasonable and everything else is bloated, complicated, and foreign in comparison.
Especially when you are at the start of your career, or if you have had a career made up of pretty much the same thing, it's easy to see the world outside your sphere as confusing, complex and unnecessary. The computing world changes quickly, though. People complain about the JS world, but it's not really as crazy as most people make out. In my career, I've been paid to work with no less than 15 programming languages (and probably more that I'm forgetting). Each of these programming languages come with multiple ridiculous frameworks. How many X Windows widget libraries have I used? Windows? Old Mac? OS X? Java has it's own! Web frontend frameworks? Then how many DB frameworks? How many communication frameworks? How many IPC libraries? Seriously, I'm just getting started.
Programming is programming and if you don't want to be constantly learning new things, then this job is not for you. I don't for a second think that's the case ;-) Every one of us gets "new framework fatigue". This isn't Pokemon. You don't have to learn them all. However, you should keep learning new things that interest you because each one of these things has valuable ideas in it. Each one uses a technique that you can use later in your career -- even if you aren't using that framework/library. Similarly each one of these frameworks and libraries has huge drawbacks. Really understanding those drawbacks makes you a much better programmer.
I've got a lot of friends that are still DB2 programmers. Others that are MFC programmers. There's a good chance that if you are under a certain age that you don't even know what I'm talking about. They have to hang on to their jobs with a death grip because they will never get another one. Move on. Learn new things -- you don't want to be like my friends.
P.S. I have used almost everything you've listed -- except jQuery. :-D