I'm a bit tired at the moment, so I can't get to all your points but I will assure you that you're definitely not alone in cosleeping/bedsharing

You'll find a great deal of us in BB land are bedsharers, even more stick to the "proper" definition of co-sleeping (sleeping with bub in the same room but not necessarily in the same bed) and pretty much everyone has fallen asleep near their child at some point