There's no "winning" life. We're all going to die, the sun will expand to engulf the earth, and the universe has several possible endings but it ending is something physicists are pretty confident about. There's no such thing as forever, not for you, not for your genetic lineage, not for anyone or anything. So there's no clear way that having offspring is any more purposeful than anything else.

My father was a lot like you when it came to pushing the "giving everything to win" mindset. It fucked me up for life because it made it very difficult for me to relax and enjoy things for the sake of them.