[proverbialbunny]

>Seems no JavaScript developer really seriously care about the term FP or OO.

Oh no, they care. The reason it doesn't seem like FP is big in the web dev world is because of reactive programming paradigm.

Reactive programming paradigm is designed so when one part of the program is processing it doesn't lock up the UI elements. This defaulting to being thread safe and lock free comes from the FP world.

Reactive programming is a marriage between functional programing and procedural programming paradigms and is incredibly popular. I suspect it is far more popular in the front end world than FP is in the back end world, showing their adoption, despite different, is stronger.

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On the backend side of things, many of the popular languages have been slowly gaining FP toys, not just Python. C++, Java, Scala, and so on..