This is simple to answer, but hard to fix. Because the issue is in both persons.
It is all about instinct. We have a natural instinct that tells us to protect ourselves from anything that poses as a potential threat to us.
Regardless of this being a territorial threat, belief, religion, etc.
If you keep your existence long enough among these people that see you as a threat, you will soon be considered one of them and get to be accepted.
*Also, be careful that you judge someone by how they make you feel. While you might do the same thing to others without even noticing. Usually the people who complain about something are the people who do it themselves. Because one's mind cannot see what it cannot do.
To make it short: people will always protect their beliefs, traditions from someone who is nontraditional by fighting them with their own known way. It is a conservation instinct that tells you: "I fought and had a hard time to make this "tradition" strong and also believe in it. I will not let you shatter my hard work and make my spent time feel useless."
Why ? Well accept it or not, you, yourself a "nontraditional" have your own traditional way of doing things. The way you wanna do things is a tradition but just not accepted by the community yet.
In my opinion you should grow some skin if you already decided on which road to walk on.