I feel proponents of any programming language put a lot of spin around what isolated aspects it is good for, but fail to illustrate what a programmer in even one target domain gains from using it.
Are there programming language implementations unlike what is described above, that you feel back up their marketing?
You are right Python and C++ have a huge amount of collateral available going for them. But is the utility of their language features backed up by any examples or explanations? Rigid object-orientedness as seen in Python, C++, Java, modern Javascript is not conducive to good software in practice, and we are just muddling along.
Object-oriented is a design pattern that the language can facilitate. Just because a language supports “is a” doesn’t mean “has a” does not exist. There are a lot of design patterns. Use the best language and design patterns for your team.