I completely agree with your comment and to help summarize why you are having to explain all of these things to these people, I suggest everyone on this thread read the following link to understand their error.
Dividing groups of people up without going deep enough into categorization creates contradictory conclusions.
Dividing groups of people up without going deep enough into categorization creates contradictory conclusions.
https://en.m.wikipedia.org/wiki/Simpson%27s_paradox