"Unnecessary" is the mildest of the OOP issues. A more common one is "damaging and destructive", and you cannot defend this one by simply saying that "my brain understands it better" - it won't magically become less damaging because of this.

The truth is that OOP is in most cases the worst possible way to model the real world. There is always a much more adequate model (besides the single case I mentioned before). So, sticking to a paradigm that does not work at all is nothing but a religion and should be treated as such.