All perfect praise be to Allaah, The Lord of the worlds. I testify that there is none worthy of worship except Allaah and that Muhammad is His slave and Messenger.
First of all, we ask Allaah to make things easy for you and to bless you with a pious wife with whom you will be happy. We advise you to earnestly supplicate Allaah, the Lord of the heavens and the earth, as much as possible. Marriage is a serious matter and a long journey that may involve some risks that would lead to separation. So you should be cautious in choosing a wife in order to ensure the continuity of your future life together, and all success is from Allaah.
The jurists stated that the parents are not entitled to force their son to marry a woman whom he is not pleased with as a wife. We have already highlighted this in fatwa 120515. However, this does not mean that the son should ignore their opinion. Usually, the parents are keen on achieving what benefits their son, and they may perceive things better than him as they are more experienced in life and favor reason over emotions. Hence, the son should be dutiful to them as much as he can, and the outcome of this would be goodness, Allaah willing.
Dialogue and understanding should always exist between you and your parents.
Just as parents are not entitled to force their son to marry a girl whom he does not like; in return, the son is not permitted to marry a girl whom his parents are not pleased with. So if he cannot persuade them, then he is obliged to obey them, because obeying parents is an obligation while marrying a specific woman is not an obligation unless there is a preponderant benefit. Please, refer to fataawa 125243 and 120515.
On the other hand, we draw your attention to the fact that even though marrying a chaste woman from the People of the Book is permissible in principle, some scholars disliked it because of some prohibitions which we have already mentioned in fataawa 84159 and 88451.
Yes, if she becomes a Muslim and proves that she is abiding by the Islamic religion and becomes righteous, then marrying her is good, but while taking into consideration what we have already mentioned regarding the objection of your parents.
Finally, if you continue to face difficulties in marrying this girl, then you should look for another righteous Muslim woman, who would help you in your religion and your worldly matters and raise your children upon the correct creed and good moral conduct, to marry. There are many women out there, and you will not regret it. Allaah says (what means): {But perhaps you hate a thing and it is good for you; and perhaps you love a thing and it is bad for you. And Allaah knows, while you know not.} [Quran 2:216]
Also, if this girl is willing to embrace Islam, then you may seek the help of some righteous Muslim women to teach her the true religion of Islam, help and encourage her to embrace it, and do what would make her be steadfast on it.
Allaah knows best.