How do people break a narcissist man's ego?

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.

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

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.

How Narcissists Make You Feel Unimportant and Unwanted

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

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

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

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

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The Sneaky Mind Games Narcissists Play

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

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

Is there anything wrong with me because I'm still single?

Top 10 Reasons Narcissists Accuse You of Cheating