While Jacinda Ardern did not cite it as one of the reasons she is quitting politics, there is little doubt the prime minister has faced an increasingly violent and vitriolic rhetoric. Ardern on Thursday shocked not just New Zealand, but the world, announcing she was stepping down as prime minister in February and as an MP altogether in April. His deputy, Nicola Willis, said all politicians received their share of flak and abuse, and much of what she had faced had been gendered.