Why does everyone hate on OOP these days?

Because they have innate need to be a contrarian and share their hot takes. Also OOP is very often misused by retards which makes it an easy target to show your superiority.

It's literally just objects with properties and methods that (usually) map to real world concepts

breastfeed

Nakadashi for the purpose of procreation after marriage.

OOP has ALWAYS been hated, even by many notable programmers. OOP has no concrete definition, just like the Unix philosophy, it's just an incoherent mishmash of ideas that aren't even exclusive to it nor did it invent.

Read smashcompany.com/technology/object-oriented-programming-is-an-expensive-disaster-which-must-end

Show an example of good OOP.

>everyone
go outside

I can only do C so yeah
This sounds insane to me

God I love women so much it's unreal

Encapsulation, polymorphism, composition, dividing your program into smaller parts with low coupling and high cohesion, etc.
There isn't any single practice that is always good, it all depends on how you do it. OOP is useful for organizing your code but can be easily abused when someone does it out of principle instead of just making their life easier and code better/easier to maintain.

Based normalchad.
class Validator(BaseValidator):
def validate(self, data):
raise NotImplementedError

class NumberValidator(Validator):
def validate(self, data):
if isnumber(data):
return True
return false