We shoot/bomb isis, we overthrow and hang tyrants, we make cures for disease, we have over 5k major organizations that fight famine, war part of human nature sadly. We can't fight modern sexism because doing so is labelled sexism, and that's literally pulled straight from "Rules for Radicals", LGBT Members (me included, although I don't normally stand with the group because it's got it's head somewhere no head belongs, and many of them are bigots themselves) got their rights; continued pushing is no longer fighting for rights its fighting for control, feminism is no longer what it once was, but it really never was that anyways as two founders of the movement went on to write how men should be kept at incredibly low levels, and basically farmed for semen, and that's all we were good for. You can't cure cancer as it is just mutated cells, and you can't cure those things because doing so will get you labelled a bigot, sexist, racist, homophobe, and can casue you to lose friends, job, and even your future.
So yeah, and that's why ISIS isn't cancer, and feminism is.