Thank you for this reply. It demonstrates exactly the mindset of those few FP die-hards that I have seen wrecking havoc in a couple of companies where I worked for.
I'm not saying FP is bad, it is actually really powerful when it is in the hands of those who understand when and how to use it.
The problem with the attitude that you demonstrate in your reply is also not limited to FP: in the era of OOO, there were those that spread the evangelism of design patterns to all places regardless if it made any sense; before that in the 90's there was a group of programmers that liked to generate code until no colleague understood anymore what was happening.
And when you tried to tell them that abstractions don't come for free, but with a cost because they make code harder to understand, the answer for the last 25 years has always be the same, although rarely said straight: that it was only hard for -you- to understand, and not for the enlightened master himself.
I have seen more projects fail because of too much unneeded abstraction than by all other causes together. I even have seen companies go almost bankrupt because of projects engineered by lone wolfs where nobody understood the abstractions anymore except for the designer himself, and at some point he himself not really anymore either.
And the problem is that this mindset continues to be cultivated by CS books and conferences. Few people want to read a book that tells them that the secret of being productive as a team depends on mostly the culture in the team and the simplicity of the code, and not on the latest hyped framework, language or paradigm.