I've hard time believing incels can exist specially in rich western countries like America or Europe.

You bro! All you need to do is post ads online for free green card in poor countries like India/china/Mexico, then let vet the girl for looks.

Incels already don't have money, they aren't risking anything by marrying a chick from East. Are they?

Sheikhs already do it in middle East with Philippinas and Indian/Pakistani girls.