I think you hit it better than me. People would prefer to live in their little secure worlds, thinking their religion provides the only answers. Having someone so blatantly show there are other answers probably made people uncomfortable.
All of your religions are equal to me, all claims to Truth equally valid. Admittedly, some are far more entertaining than others.
Problem:We want to build a bridge connecting two cliffs above a high canyon. How should it be built?
Answer 1. Build a bridge out of paper and string. According to my beliefs, that should be fine for any vehicle up to 20 tons.
Answer 2. Build a bridge out of steel-reinforced concrete. According to my beliefs, that should be good enough for cars and light trucks.
Answer 3. Don't bother with a bridge. According to my beliefs, the canyon is just an illusion. Just close your eyes and walk across.
Is anyone actually stupid enough to believe that in a real situation ALL of these "claims to truth" would be "equally valid"??
If so, you can demonstrate it. Since the "bridge" claim and the "illusion" claim are equally valid, next time you come to a bridge, walk or drive beside it, not on it. Perhaps then you will be taken a little more seriously. If you are not willing to do this, then perhaps you lack the courage of your "convictions."