Good question. I didn't write the article.

Because they control every major institution: media, Silicon Valley, universities, secondary education, finance, Wall Street, Hollywood , world economic forum

They tend to be left wing hypocrites. They all belong to the same country clubs all over the globe. They are globalists who consider themselves citizens of the world.

Finally they hate populism because they can’t control the citizenry if people are free thinking dissidents.

Have you read 1984? The inner party is the elite.

Populists and dissidents are members of the outer party