Trophy hunting is the solution, not the problem.

It is only trophy hunting that allows a small percentage of the population to be harvested for a sufficiently high price - that it makes the game species a money-earner for the local population without over-exploiting the resource.

As has been pointed out, the majority of "trophy" animals are those which are in the latter period of their maturity, and have already had several seasons in which to pass on their genetics.

Yes, management is required.

There is no reason why it should not be. It's neither new, nor particularly complicated, and is entirely compatible with sustainable use to the benefit of hunters, local inhabitants, and the environment.

Throwing up our hands and putting it all in the "too hard" category is what destroys both game populations, and the environment.