Why do Western countries ban Buddhism?

The foundation of all religions is like a person's journey up a mountain. Different people climb to the top of the mountain, either by walking, rock climbing, climbing, or digging holes in the ground. As long as they reach the top of the mountain in this way, they think that the only way to reach the top of the mountain is, and after their own personal experience, So just exclude other people’s ways. This is where the hostility between religions comes from.

Only Buddhism, which has climbed to the highest mountaintop and overlooked the climbing processes and methods of other religions, can tolerate all religions in the world. It is discussed in detail in the Diamond Sutra, so you might as well read it.