How do people break a narcissist man's ego?

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

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

You Might Be Interested In Reading This On Quora:

Watch BETA Technologies’ electric aircraft fly into NYC with passengers onboard [Video] - Electrek

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

Stay away from them.

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.

Aut perferendis voluptatibus eum sapiente officiis est explicabo itaque.

How Narcissists Make You Feel Unimportant and Unwanted

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

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

Clair Obscur: Expedition 33 Teases Big Improvements for Future Updates - Push Square

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.

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.

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

This couple paid $19M for 2 Jersey Shore houses. Then they demolished them. - NJ.com

The Sneaky Mind Games Narcissists Play

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

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

Artists get better with age, e.g., painting. Yet when it comes to pop music, the famous work tends to be written when musicians are in their twenties. So, why aren't Bob Dylan or the Stones banging out amazing tunes now?

Top 10 Reasons Narcissists Accuse You of Cheating

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.

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

Inside Mark Zuckerberg’s AI hiring spree - The Verge