How do "you" explain that in nature the m/f ratio in the herd is 1:1, but in overpopulated areas it is often 1:8? Something is responsible for that. "Something" (by definition) is reducing male population at a greater rate than female population.
Perhaps that "something" isn't reducing the male population but is naturally increasing the female population..., the genetics of male cervid sperm produce female offspring in a 4:1 or higher ratio over males. It was mentioned that a single male will service several females (so the uneven ratio is not a genetic fault). Coupled with the increased food supply found in non-hunting areas causes twin and triple births by bearing-does..., resulting in 2 or 3 females being born in 3 out of every four pregnancies. So you'd get an result of 9 does to 3 bucks from every four bearing-does per year.
(Then you have the problem of rutting males exposing themselves to "natural' predators in my area known as Chevy bumpers, Buic bumpers, Ford bumpers, etc etc )
The female population and male population may be reduced at an equal rate but the greater production of females will cause the offset.
Even here in Maryland where the hunting limit (for the majority of counties) is 10:3 does to bucks, the population continues to be vastly female.
It is also wrong to paint the entire hunting-picture as hunters taking the best or better animals. I have never had the luxury of knowing which was the "old" vs. the "young" except for a very small deer (less than a year old), but I do deliberately leave the huge 8 point in my area alone as he is the "daddy" of the rest. Basically, where I am located, I take whatever comes by, except for the big one, but he's usually smart enough to stay where he doesn't get pressured, outside the legal hunting area but often close enough for me to see him and for him to "taunt" me
Predators always take the low hanging fruit. Young, old weak, sick.
That's a myth. It applies to species that move in herds where the young and females are clustered in the center with males defending on the outside. When the predators set the herd running, the weak, ill, and newly born are more likely to fall behind to be singled out by the chasing predator.
Deer do not herd nearly as well as non-cervids, so bear, wolf, and mountain lion would have to take what they find while being in ambush or by tracking, and much less chance of coming up with a weak, old, or young critter. Further the "weak" are not necessarily poor specimens. Bucks may become temporarily exhausted after a couple of sparring matches to determine dominance, and as such would be prime candidates for any predator including humans. Since many deer infested areas have no non-human predators, the predator argument in many areas is moot.
LD