Jihadi John isn’t job-seeking John.

We’re talking about the sinister masked man who appears in ISIS videos of hostage beheadings — and who beheaded some of the victims himself. This week the man behind the mask was revealed to be a British national, Muhammad Emwazi.

Contrary to the claim that the attraction to radical Islam is being driven by economic deprivation, Emwazi grew up in a wealthy household in West London, attended nice schools and graduated with a degree in computer programming.

And he was no recent transplant: His family moved to Britain from Kuwait back when he was six.

This picture should put to rest the ridiculous assertion by the State Department’s Marie Harf that fighting ISIS means understanding the “root causes that leads people to join these groups” — e.g., a lack of good jobs.

Hostages who escaped ISIS’s clutches described Emwazi as “obsessed” with Somalia and say he forced them to watch videos of ISIS-offshoot al-Shabaab.

Although some claim rough treatment from British and Dutch intelligence officials after a trip to Africa radicalized him, it appears his radical interests were already developing.

Emwazi is similar to other terrorists, including the 19 Nine-Eleven hijackers who were mostly educated and comfortably middle class. Not to mention Osama bin Laden, who came from a prominent and wealthy family in Saudi Arabia.

For too long, too many in the West have simply refused to take the message of radical Islam seriously. Emwazi shows he sure takes it seriously — even if we don’t.