This is a real question, not a rhetorical one, and its answer is subjective to your values and experience. If your answer is something akin to "I am indifferent to whether I exist or not" then your entire argument is logically sound. On the flip side if you attach value to what you have and are, then it logically follows that if you have the chance to "ask your ancestors to screw" - you would.
As for "casting aspersions" and "going after" - that's not what I am doing here. You do you. The more interesting question is - which should society value and which should someone emulate based on their own values. That again goes back to the question I asked. If a view is contingent on someone feeling "meh" about their own existence, it's not a very appealing perspective.