whataboutismnoun [ U ]
uk/wɒt.əˈbaʊ.tɪ.zəm//wɑːˈt̬əˈbaʊ.tɪ.zəm/also whataboutery, /wɒt.əˈbaʊ.tər.i//wɑːˈt̬əˈbaʊ.tər.i/disapprovingthe practice of answering a criticism or difficult question by attacking someone with a similar criticism or question directed at them, typically starting with the words "What about?":
He's the kind of person who responds to an attempt to protect women from domestic violence with whataboutery: "What about male victims of domestic violence?"