NTA. Here’s some food for thought. My former MIL survived her husband by just a few months. It had been her husbands express wish that my daughter, their granddaughter, be left some funds. He’d stated this for many, many years. MIL never spoke against it. After he died, the miserable old witch who was deeply homophobic, cut my daughter out of the will. The other grandkids got their own (small) inheritance. So, the money has become representative of love and acceptance. It’s an intentional and cruel and final reminder to those left out of the will, that they were neither loved or accepted. By keeping the full inheritance, you’ve done nothing wrong. However, you may appear to be somewhat tacitly condoning his hateful views. Your sister knows you’re not homophobic. But you are benefiting from homophobia. That hurts. It hurts hard. You can keep all the funds, or you can give her some. You’re NTA. Whatever you choose, you’re NTA. And you could choose to be as gracious to your sister as you were to your hateful grandfather. Take care.