One of the only things I admired about Zohran Mamdani’s campaign for mayor was his temperament.

His events and social media videos were invariably upbeat, and he seemed to be enjoying the long slog enough to flash a smile even when his quest appeared to be a lost cause.

With a few exceptions, that even keel has remained intact since his shocking election, but I’m no longer convinced it’s a virtue.

Rather, with 18 New Yorkers found dead on icy streets, and at least 15 of them from hypothermia, according to the medical examiner, any mayor with a heart would be devastated — and moved to action before another soul perishes in that God-awful way.

But it shocks the conscience that Mamdani maddeningly refuses to own the problem, let alone do anything of significance about it.

At the very least, he should have ordered city workers to move as many homeless people as possible indoors as soon as the temperatures plunged.

His refusal to pull out all the stops to save lives suggests his heart is as cold as the winter wind.

How could he see people huddled under filthy rags and plastic while wind-chill temperatures fell below zero, and not use his power to help them when they were so obviously incapable or unwilling to help themselves?

What, no compassion?

That’s socialism for you, comrade.

City Hall’s lame defense for the inaction is built on an outlandish claim that the laws prohibit moving people inside if they don’t want to go.

Oh, please.

That excuse didn’t stop any other mayor in the past 40 years from helping those who couldn’t or wouldn’t help themselves when temperatures got near freezing.

Ever since Ed Koch used........

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