When hunting for herd reduction I purposely will shoot a fawn for every mature doe I take. In my head it keeps the age classes of the herd balanced. Where if I shot 4-5 mature does a season I feel it disproportionately effects that age class.
IMO ( for what that's worth ) your approach/reasoning does have merit.
I have only done culling or attempted herd management on small scale. IF I had property that I could control the deer population, I'd sure give your
philosophy serious exercise a few years to see the results.
I have NO control on properties contiguous to where I hunt so I can't truly manage the deer population.
I know from my observation and my family who lives there that there are WAY more 'does' than bucks. I have no
compunction about killing Does.
As to fawns, there isn't enuff meat for ME to waste a tag.
Does are the deer 'producers' or manufacturer.
IF we could distinguish buck/doe fawns, I would shoot doe fawns. We can't !!
IF you want more bucks -- don't shoot buck fawns !
Jerry