[brute]

In sexual selection there is also someone else (i.e. the group of females in a peacock population) that decide whose DNA should not be inherited. And sexual selection is considered a part of natural selection. So your argument does not hold.

Wikipedia: Sexual selection is a mode of natural selection where members of one biological sex choose mates of the other sex to mate with

https://en.wikipedia.org/wiki/Sexual_selection

I could even argue the same thing for natural selection itself. When a predator kills an animal, he decides that the DNA of that animal should not be spread further in the future.