This is completely absurd and backwards. Violence on planes (at least, phsycial, weapon-assisted) is basically exclusively the purview of organized ideological groups, it's not like crime in the streets. While I'm not aware of any Sikh group who has ever attempted to hijack a plane, the extremely well established general pattern is exactly that extremist sincere believers in a religion or cause are the most dangerous people on a plain.

You just want to say Muslim don't you