Steve as Sandbur said, in most of my woods I am lucky if I can see 50 feet so can having to thick of woods be detrimental for hunting Mature bucks?
Only if it's so thick that they can't walk through it.
I know others talk about bucks liking a lower stem count and that if you make your woods too thick and offer too much food that you risk turning your ground into "doe factories." I just have never seen either be the case, but am not arrogant/foolish enough to believe that means it can't happen. My GUESS is that the reason it doesn't happen to me, yet seems to happen to some others, is because of the complete package I'm trying to offer bucks.
I used this analogy with a client that asked this during the phone review process just yesterday. Ever use a loud, white flash cam before? If so, did you notice any difference setting up on trails and food sources than when setting it on a small water hole, mineral site or bait pile? In my and my buddies' experiences, on the trails and food sources, you get a percent of bucks that get caught in the headlights once, get the look of shock on their face and bolt, rarely to be captured on that cam in that specific location again. Shift the cam and the process repeats itself.
Now, take that same buck and cam and play that out over bait, minerals or small water source. You get the "caught in the headlights" pic once, and there is typically a span of several days to a couple weeks before you get him again, but you typically do. the time span tends to be less and less between freak outs until he finally pays no attention. Why the difference between the trails and food sources, where you never again get the skittish buck (not all bucks care about flash or cam noise, including a decent % of mature bucks, but the "skittish" ones do) and the bait, minerals &/or water hole, where he eventually blows it off as harmless? He can feed in different areas of the food source and walk through different areas, while still getting all he really wants. On the flip side, he can't hit the mineral/bait pile or water in the small water hole without getting the CLICK/FLASH. He wants the minerals/bait/water more than he wants to avoid the CLICK/FLASH.
I believe it's the same with stem count and doe numbers. I do believe, all else being equal, that many mature bucks would rather be off by themselves. I'm not convinced either way that they have a preference on stem count. Still, I manage/have managed some properties with stupid high doe numbers and very high stem counts, higher on both than in the surrounding areas, but still consistently have more bucks than the surrounding areas. Why don't I have these problems that others report to have in similar situations? I think that, just like the cams over bait/minerals/small water, it's worth it to the bucks to remain there, as that property offers them everything they want/need better than they can get anywhere else. so, they take that trade.
It's just like a human male/female relationship in a weird way. Regardless of whether you're the male or female, relationships are often work and can be a real pain. The reality is that life is a lot easier in many ways being single than having a wife/GF or husband/BF. So, why do we put ourselves through it? Because, in a healthy relationship, the good outweighs the pain portions.
I see it as the same with bucks. Sure, many of the mature bucks would "rather" be left alone and MAY not like high stem count, but give them everything else they want and need better than they can get anywhere else and they're still very likely to take that trade.