nobody ever made such claim - doesn't matter how old it is - you continue to put it forward as your opinion - as you just have.

They all did claim it came from culture, and we are all influenced by our culture.
I have never, ever put it forward as my opinion.
I always said I did not know about that culture.
I just believed them, as I might a doctor's diagnosis or a weather forecast.
Not my opinion.

You can not make me out a racist over that, and you have been trying for 3 years!