daddymonster, most of the guys who bash trad archery are just speaking out about that which they do not know. You are correct in thinking trad gear was used to feed mankind for thousands of years and still works today.
You will gets lots of good advice on this forum and most of it will revolve around a few major points:
1. Get equipment that you can handle - don't over bow yourself.
2. Tune well.
3. Practice diligently, always paying attention to form, and realize that traditional bowhunting is a close range affair.
4. Also, practice from stances and elevated locations that you are likely to encounter in the field.
5. Have confidence in your ability to learn to shoot well - it won't come overnight, but it will come.
6. When the time comes, PICK A SPOT!
7. All this time study the animals you wish to hunt so that when you go to the field, you will not be totally ignorant of the game.
8. Use trad gang as it can be a valuable resource.
9. Most importantly, HAVE FUN! Repeat, it should always be fun.
You will get a lot more detailed info from guys as you pose specific questions, but the basic concepts here will get you going in the right direction. Good luck and welcome to trad archery.