I don't think most people actually want to kill us all. For most of them, that's just what they have been taught is the only acceptable thing to say about us - so that's what they say to fit in with the crowd and gain public approval.
Nonetheless we do need to take them seriously, because some of them really do believe it and most will go along with it if they think it's popular. I know that some in our ranks have been taking steps to be able to do something about it. Playing at genocide is a very dangerous game, and I don't think most of our enemies have ever considered the possible consequences for their actions, or that we know who they are even if they don't know who we are.