This sounds like an excellent opportunity and situation for teaching your daughter that different groups of people often have different views and beliefs about many subjects and that this is not a bad thing. In fact, it usually is a very good thing, allowing the people to get together and discuss their different views which can lead to deeper understanding. This forum is a great example of that. So it is perfectly fine for her to hold opinions that differ from others, even from most other people, but that it is just as important to respect other peoples rights to their opinions.
You should also keep in mind that children at this age often ask questions and want answers that are very broad but not very deep. In part, they are learning how to ask questions and the answers are incidental.
I really thought I had another year or two before this happened.
Fasten your seat-belt D, it's going to be a bumpy ride.