Joseph, you are right that the commandment applies once they converted. Where did i indicate otherwise?
I would tell her to wait first for the Rashi’s grandson.
Also, what is it that you don’t understand? There is a difference between yichus being a consideration and “Geirim need not apply”(Chas ve’sholom).
Also, buddy, I am waiting for your reply as to whether you would marry Rus or Rabi Akiva’s daughter?
Also, what is it that you don’t understand about newbee’s comment? You don’t understand that these hakpodos create a division in Klal Yisroel? It is self-evident, and it is a befeirushe Gemorah on the second to last omud in Ta’anis?