Ok, so then I take it you agree with me, essentially
we can say that certain character traits are genetically inherited, but due to our primitive grasp of this science, we can't do much better than correlation between a gene(s) and a trait(s). Claiming causation is a lot trickier, and wrong IMO, as I've been saying all along: it ignores the dynamic and subtle interation of the growing organism with its environment.
(Btw that is not saying that enviroment 'causes' character. That, also should be clear enough I hope.)