The game can be whatever it wants to be. It doesn't need to limit ammo. If you want less ammo, you can use a mod for that. Few people will not want this to be one of those games where you can barely use a gun because ammo is so limited. And most wouldn't want it removed from crafting.
From your baby parts about things you want changed, it is clear you want a have different from what the devs want for vanilla. Vanilla is intended to appeal to the first audience. Mods are intended to be used to customize it for each group of people for what they want it to be. Most of what you have commented on are niche suggestions that may appeal to you and some people but most either won't care about our won't want.
There isn't anything wrong with suggestions or asking for new stuff but you want a lot of changes and they are going out of early access really soon, so it isn't likely to see many changes beyond what is on their list already