How do people break a narcissist man's ego?

How Narcissists Make You Feel Unimportant and Unwanted

The Sneaky Mind Games Narcissists Play

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.

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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.

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

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.

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

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

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

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

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

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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.

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

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