Oh, I am so sorry. Having been in the RS Pres before, I know we would start to squirm and try to figure out how to get us back on track before it got off onto a tangent. I am sorry your feelings were hurt.
I am happy to say that in our lessons, we don't refer to people in Utah that way because half of the people are from Utah!

Actually, the other day in primary, the teacher asked her class where God lived and one of the boys said "I don't know for sure but I think it is Utah!" The teacher told the mom after class while laughing that she really shouldn't teach her son that! It became a big joke and they later realized her son was talking about the Prophet, not God, but it gave us all a laugh.
When it comes down to it, what you do is between you and Heavenly Father, if you feel okay about it and so does He, then those people need to just keep their opinions to themselves. I am so sorry you felt bad after RS, I think we have all been there and it is so frustrating and maddening at times, especially when you are there to be uplifted.
Take Care!