Hi,
First off, we don't have near enough protest songs or songs of conscience (SoC's) so good on you. SoC tread a thin line between delivering a message to enable a shift of attitude, and delivering a lecture that causes people to switch off. I think I would only change the 'please do something' bit as ideally, that is the outcome of the song - that people feel compelled to take notice, and do something - so maybe I would try frame that another way to induce that - rather than demand that.