Now you're contradicting yourself.
You started by saying that it that it doesn't vary between fat people and thin people and only food intake and exercise matters. Now you're trying to argue that the variance is irrelevant because it it is partly caused by differences in fat mass and free fat mass.
Additionally, you're ignoring this line from the link I provided:
The rest of the variation (26.7%) was unexplained. It could not be accounted for by age, gender, fat mass, free mass or any other factor they found.
In one study, when comparing individuals with the same lean body mass, the top 5% of BMRs are 28-32% higher than the lowest 5% BMR.
I could keep going, but there's no point. You've offered no proof whatsoever to back up the opinions you keep stating as fact and you're contradicting yourself in your own arguments. I'm not going to bother replying any more because this is turning into the equivalent of arguing with a new earther about evolution.