[fineline]

I agree that attributing this to genetics is somewhat abstract - it would normally be attributed as a phenomenon of psychology. And "more attracted to the negative than the positive" is an ambiguous way of putting what I guess the OP meant - that fear is a more compelling emotional driver than "positive" things such as the desires to consume or procreate. But in the very long run, since this is all the result of evolution (leaving aside for now the possibility that it is all God moving in His mysterious ways, which, whilst I certainly can't disprove, isn't the thrust of the criticism) and considering that these same behavioral preferences are readily observable in all animals and indeed many plants and bacteria, then the suggestion that they are indeed ultimately transmitted and shaped by genetics seems reasonable?