How do people break a narcissist man's ego?

How Narcissists Make You Feel Unimportant and Unwanted

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

Is Daenerys Targaryen really the most beautiful woman, or is everyone saying that just to flatter her?

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.

You Might Be Interested In Reading This On Quora:

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.

Should you have a threesome with your best friend and your significant other if the significant other requests it?

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

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.

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

What do you think of casting Emma Watson as the next James Bond?

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

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

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

What do you think about Vivian Jenna Wilson's decision to speak out against her father, Elon Musk, in a public interview with NBC News?

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

Top 10 Reasons Narcissists Accuse You of Cheating

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