A stranger randomly bashed a cancer survivor in the head in a broad-daylight attack as he walked outside Macy’s Herald Square this week, cops said – leaving the victim to lament that “New York is not safe.”

Mustafa Sevindik, 71, was strolling with his wife, Hulya Sevindik, 66, and son outside the flagship store on West 34th Street near Seventh Avenue around 4:30 p.m. Wednesday when the petite female assailant began hitting him without warning.

Mustafa initially felt a tap on the back of his head and thought nothing of it before the woman continued to strike him – likely with her cell phone – three more times, Hulya told The Post Thursday.

Mustafa Sevindik, 71, was walking with his wife and son when a female stranger bashed him in the head unprovoked, cops and sources said. Michael Nigr

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