The problem is experience in jQuery and even Angular 1 are not relevant to the issue of why React (or even Vue for some) may be perceived as difficult. They use a very different model.
Emacs was very difficult for me when I first started learning it. It was much more difficult than using a simple text editor (and this was with 10 years of programming experience)! Yet I persevered and you know what? After giving it some time and learning it properly I found myself vastly more productive with the tool.
Some things don't lend themselves well to immediate gratification. If the OP provided even a hint as to why React was more difficult for him I'm guessing it's not something with React but rather that he was using two completely different state management solutions.
Emacs was very difficult for me when I first started learning it. It was much more difficult than using a simple text editor (and this was with 10 years of programming experience)! Yet I persevered and you know what? After giving it some time and learning it properly I found myself vastly more productive with the tool.
Some things don't lend themselves well to immediate gratification. If the OP provided even a hint as to why React was more difficult for him I'm guessing it's not something with React but rather that he was using two completely different state management solutions.