How could it be trusted?
How do you make your coins valuable that much?
Be realistic.
Value will be created with the deposed US-dollar.
If you buy cryptoDOLLAR, it will cost 1 USD and that 1 US-dollar will deposed on safe and never used.
But if cryptomarket crash, or no one don't want to trade cD anymore, you will get that deposed dollar back. I think cryptoDOLLAR realistic value is then 1 usd.