OOP and functional has never really been a meaningful axis to categorize programming languages. There are more difference between Smalltalk(OOP) and Java(OOP) t

OOP and functional has never really been a meaningful axis to categorize programming languages. There are more difference between Smalltalk(OOP) and Java(OOP) than say, Smalltalk and Lisp(supposedly more FP). It's probably better to categorize things based on (pick one of) semantic, runtime (JVM vs Beam vs blablabla), productivity, correctness, readability etc.