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Except we have the foresight to know everything will end. Even if we were to produce 100 000 000 perfect replicas of our genes they would still hit the same wall— extinction. Further, whether we have free will or not (prolly not), we're able to coopt the gene platforms to further non-procreative aims.
It's a bit like saying the point of a TV show is to earn profit for the people who bankrolled it. Well, yes that's why it's here and literally the only thing that will keep it going, but you can do a lot more within those constraints than play out the material reality.
So the question remains.
Even if we were to produce 100 000 000 perfect replicas of our genes they would still hit the same wall— extinction.
Doesn't matter, had sex.