The solution would be, better condoms, or temporary, reversible sterilization.
I think immortality is very possible. The main cause of aging is due to lower STEM cells, lower sex hormones, and DNA degradation.
Hormones can be taken. STEM cell production can be increased. And gene therapy can repair and alter DNA.
Without getting too much into detail, pretty much every assertion made here is false or at a minimum has no supporting evidence. It’s intellectually dishonest to make a false claim in this manner — so for the sake of objectivity let’s just name some of the factors we hypothesize to be related to aging:
Genomic instability (mutations accumulated in nuclear DNA and mtDNA)
Telomere attrition
Epigenetic alterations (DNA Methylation)
Loss or lack of proteostasis (folding of proteins)
Deregulated nutrient sensing (this one is a little beyond the scope, but feel free to message me or do your own research)
Cellular senescence (no longer dividing cells in certain tissues to prevent cancer proliferation)
Stem exhaustion (caused by a a mixture of all listed factors and more currently unknown)
So there are a mixture of programmed factors, as well as damage related factors that are responsible for aging — to what ends they play into each other and how they are interconnected is still unknown in most cases. We can’t be sure if these programmed factors can be changed, and if they can the consequences surrounding changing them. It’s also unknown whether the damage related factors could be affected by changing programmed factors.
It’s intellectually dishonest to make the assertion that immortality is possible — as there is no evidence to support this. More over, likening all damage factors to “degredation” is also dishonest, because we can’t possibly understand all the ways that cells are impacted by their environments. We frankly don’t even know enough about programmed aging to begin to understand damage processes.