Gimli was just trying to help in any way he can. You think anyone in Elftopia was capable of hitting the ring with as much power as a dwarf in the prime of his life? They couldn't even punch down a tree, which is why their land is overrun with the bloody things. And the one time they made a "legendary" sword, it famously shattered into a million pieces. Wouldn't have happened with proper dwarf craftsmanship, I tell you!

That's the smart thing to do if you are a skeptic.

If everyone just shrugs and walks away when told "you can't go through that door", nobody ever discovers the whole city is a fake made by aliens to study humans.

Relevant

Throw it in a volcano? In the volcano district?