Oh, I agree that Olga probably wouldn't have accepted the proposal. But Kaiser Bill would not have liked an alliance of Britain and Russia through a marriage that would put a Russian Consort of the British throne.
The Kaiser always thought that his uncle King Edward VII was machinating behind his back. This would have taken the proverbial cake.
I wonder though, since Alix had refused to marry Eddie (Albert Victor) would she have even considered sending Olga to marry David (Edward VIII)?
We know that Alix had a strong connection to Britain, some her happiest days were spent there. But she had promised that her daughters could marry for love and if Olga did not love David, then there would be no question of the engagement coming off.
Wouldn't Queen Victoria have been proud, though. Had she been alive to see it.

Just a thought has anyone ever read in any biographies of David whether or not he ever considered Olga as suitable or if he was interested in her? Most of what I have read concentrates on his premarital flings with married women (he was a commitment phobe) and, of course, Wallis Simpson.