The Cruz definition is no different from that of the children of Queen Noor of Jordan or those of Grace Kelly. It's paving the way for a situation where a person could be ruler of the US and another nation.
It's not a good precedent. We should be fighting to maintain our sovereignty, not creating situations that could work against it.
If Cruz is royal bloodline, which I’m sure he is on his mother’s side, the only test for allegiance is whether Cuba can lay claim to the “throne”.
We peons at the bottom of the schmuck pool really don’t know how this all works.