OP, last summer i was put in a similar situation.
I don’t live in the same state as my family…but I go visit every year or two. And I had converted to Catholicism and had not told my fundamentalist family members about this. And when I went to visit last summer i was not going to tell them. But after thinking about it, i came to the conclusion that I owe it to them and to God to tell them even though I knew they were hostile towards the Church.
Well, there were fireworks for sure. Heated discussions…and at the end of my trip there, they were forced to acknowledge that I was providing good answers to their many objections towards the Church. And they see that I still love Jesus, and for protestants, that’s something they must see from us as Catholics. So my conversion revelation a year later seems to be fully accepted at this point. Sure, they will likely never convert themselves, but they have let their guard down some for sure.
So, I know you regret making this thread, but you have received some good advice and encouragement here. Think about it, pray about it and talk to your pastor about it.
God bless.