Ha! Nice pictures guys... 
But think of this. What would you say about a banking system that only allows its products and loans to be backed by shares in itself? Why shouldn't that banking system be open to accepting any form of good collateral, as in modern finance? Who is on the horse then?
What I'm leading toward is open architecture, not promoting any specific coin or philosophy. Anyway, this conversation is a bit ahead of its time as its not really possible yet. So I'm comfortable taking the jibes for now! 
I'm wondering if issue a pegged bitAsset with BTC backed, how to frozen the BTC in Bitshares system? Sidechains can do this? even if it would do, how to stand a 10min confirmation in a 1s confirmation system, what we're talking is about the pegged bitAsset, if you want a UIA, who cares it's BTC or LTC or whatever else? and I think our target should not be crypto world but real world.
I'm not good at technical and this is just my understanding.