Congrats, even though its modern time i would still love the reapect of asking my parents. Absolutely, many people who are against this tend to forget that you don't only marry the partner, but also indirectly her family members. They will always be in your life some way or another. She may feel unevenly yoked.
Unequally Yoked Isn't Just About Romance — The Rebel Christian
Whether in business or relationships Christians are not to be unequally yoked with unbelievers. Starting a business with an unbeliever can put Christians in a terrible situation. It can cause Christians to compromise, there will be disagreements, etc. You can easily be led astray and hinder your relationship with Christ. We must deny ourselves and take up the cross daily. Sometimes you have to drop relationships for Christ. Trust in God alone not yourself.