The idea of religion making people do crazy things is a contradiction in itself.
It's just inconsistent when religion makes people do crazy things.
The idea of religion making people crazy is a contradiction.
「矛盾」は、contradiction や inconsistency などと言えます。
その他の言い方:
- Religion is supposed to be about peace, not madness.
*be supposed to ...「…することになっている」
- It's absurd when religion makes people do crazy things.
*absurd「バカげた」
- It's absurd when religion is used as an excuse to do crazy things.
*excuse「言い訳」