She rolls her eyes, trying to make it as obvious as possible. "You can't just kill everyone. Mass genocide isn't feasible or sustainable. Besides, plenty of mutants get born to human parents. What're you gonna do, put kids against a firing squad?" She's really hopeful he is not in fact thinking that, but she suspects he hasn't actually thought that far in advance.

"Whatever. Not approving of your methods isn't gonna stop you, and also I have a lot more shit to deal with. But it might be smart not to, you know, mob strangers on the street. Friendly advice." Totally friendly. All her 'friendly advices' are mildly threatening. Obviously.