Have you ever changed a strongly held belief due to the influence of a diverse group?

Yes, one example is that as I've aged I've grown a lot more accepting of LGBTQ+ people via learning about more obscure topics and redefining my perception of gender and sexuality. I also tend to add caveats onto strongly held beliefs when they're presented to me and I agree that they're logical; one example is abortion-- while I do strongly believe that it's a medical necessity for people and the difficulty of getting abortions should be minimized, I also understand that they're traumatic, can have complications, and there's a valid philosophical conundrum tied to them, so policies should be created to prevent the NEED for abortions as well.