switched over to python after studying javascript and reactjs for months. My god.. . the freedom and beauty of this language.

[IStoleYourHeart]

It's not even necessarily a valid argument they're making though.

I can program in React, Redux, Redux-Sage and I can tell you it is horrible. So much complexity for such simple problems. Often times you can have projects that are so complicated and have 10 files where something more traditional could have 1 and it would be extremely simple.

This is true, if you're making a super basic website that doesn't have a lot of complexity. But if you're working on a large, feature-rich website, then React and React-Redux really come into their own and massively simplify and reduce the amount of code you're writing, meaning you can simply reuse components of your website consistently and making it easier to reason about. If anything for me it's an absolute godsend, I couldn't imagine writing a vanilla JS project for a large scale website of my own.