How do people break a narcissist man's ego?

Instead of trying to do something on his own, he preys on women, not just for money and sustenance, but to crush them.

You Might Be Interested In Reading This On Quora:

How do I know this? My ex was a malignant narcissist who tried to destroy me. He was jealous of his ex who was a psychologist, and he was jealous of me because I was educated and successful.

'Classmates threw Snickers at me to test my peanut anaphylaxis' - BBC

How Narcissists Make You Feel Unimportant and Unwanted

He does this by stealing from them, using them, and abusing them. He does this by trying to be better than you, but most of the time he can’t because he is completely useless. He is often very jealous of successful women.

Trying to change him or even “break” him is impossible.

A 'Crazy Idea' About Pluto Was Just Confirmed in a Scientific First - ScienceAlert

10 red flags to watch for on a first date to identify a narcissist

It is best to leave him alone, and let him face his struggles on his own.

Stay away from them.

The #1 Breakfast to Eat to Support Your Metabolism, According to Dietitians - EatingWell

A narcissistic or psychopathic man is a loser who has to compete with women.

He moves from woman to woman, unable to be a man and stand on his own. He prefers to take advantage of women, while abusing them and driving them to mental breakdown.

Instead of going out into the world, competing with other men, and improving himself, that's how he lives, just like a parasite.

Your Blood Test Can Now Track Junk Food Consumption - Indian Defence Review

The Fascination with Narcissists: Why We’re Drawn to Them

These weak men believe that women have more "privileges" than they do.

The Sneaky Mind Games Narcissists Play

Proposed NASA cuts to space science: “Staggering” - EarthSky

Top 10 Reasons Narcissists Accuse You of Cheating

It is best not to get involved in a narcissistic man’s failure.

They are so weak and failed as men, that they will put on a whole show pretending to love a woman they actually hate and want to destroy.

Google’s Pixel 10 phones will reportedly launch on August 13th - The Verge