In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
2- It is not permissible for a Muslim to buy non-halal stuff such as alcohol or pork and gift to non-Muslim parents.
3- Instead, you should honor and respect your parents. Always try your best to show mercy and keep the communication open with them.
Sheikh Omar Suleiman answers your question in this short video:
Almighty Allah knows best.