Have you heard about the "plague" that's infecting deer? Some sort of chronic wasting disease, apparently, and if it's not already transmittable to humans, it's only a matter of time until it will be.
Where I live, deer were reintroduced by humans less than 100 years ago, after the population was completely depleted. Those humans apparently didn't take into account that we'd also completely exterminated every one of their natural predators.
Time and again, humans demonstrate that they cannot seem to 'manage' wildlife effectively.
They have few other predators around here. A pack of coyotes might be able to take one down, but they have to be starving to even try. There have also been a few cougar sightings west and north into MI.
There used to be natural predators where you live, before humans killed them all, correct?
Same here, with coyotes. They aren't enough to keep the deer population controlled. There are occasional cougar sightings here, but no breeding population. Black bears are getting closer, but again, no breeding population.
I don't know what the solution is. I'm just saying that humans don't have a great track record when it comes to managing wildlife. We're humans... f-ing things up is what we do best. ;)