to the question:
"but what's the point of reproducing then?"

the answer:
the point of reproducing is to perpetuate your species. for the original organisms, being able to reproduce was a mutation like anything else. the ones that did not reproduce just died off. the ones that just happened to be able to reproduce passed on their genetic material to offspring. the ones that were the best at reproducing produced even more offspring. we are the end product of billions of years of reproduction refinement. we are good at reproducing because we have been designed and refined to be so. our design makes us want to reproduce and makes us enjoy reproducing. we reproduce because we are programmed to reproduce.