I have nothing against the monarchy as such either, beyond the usual 'whats the point in them?' What i do quite like is the sheer irreverence of the guy, if you watch some of the other videos of his, he really likes to challenge popularly held public opinions in the same kind of way, if you can get past the crudity, he makes some very good points, somewhat like brass eye minus the subtlety.
And yeah, you will always get people who like to argue that black is white, (i live with someone like that) but that makes things fun, although it can be quite irritating when someone is being a contentious cunt just for the sake of it.