oh please, there are plenty of African organisations fighting theses causes, the problem is they are not given the same amount of publicity.
Here is a list of the various organisations doing the neccessary works
www.afford-uk.org/resources/database/search/?sAction=viewall
However at time there can be an elemet of slackness amongst us. For example a few years ago me and my dad attened a march through central London to protest against the Sharia Law in Nigeria. So many invites were sent out, yet so few people came. Even the Nigerian High Commission diddn't trun up.