Low voter turnout, which I think he's trying to get at, is a problem for all races in the UK so not sure this campaign should be aimed at one race or another rather the populace as a whole.
Good advert. Whole point of things like this is to get people talking. It's certainly working in that respect. Yes, increasing voter turnout across the board is an overall aim, but there are specific campaigns aimed at the demographics that vote less than average. Young people being the main one, but also women and (as in this case) black people. Don't see anything to criticise here, tbh.