In an ideal world,Multiverse,I would agree with you wholeheartedly and unequivacally.
The issue is that the Duma, Church, Prime Minister and President of Russia appear to aknoweledge Princess Maria's claim as being the more legitimate of the Romanov's.
Xenia's decendants are either all heirless or have married way below their rank,some even two or three times.
As I have said on many numerous occassions, I believe that Xenia's grandsons,Michael and Andrew are those closest to the throne, now that HIH Prince Michael has passed,his brother HIH Prince Andrew is "heir", BUT I CANNOT SEE HIM AS BEING AN ACCEPTABLE CANDIDATE.
Perhaps, Xenia in Greece and or her daughters?, but they are more Greek than Russian now.
Anyway, it is all up to the Russian State and her President!