No one takes Brand seriously..i mean who is he and why should anyone pay him any heed? Its not like he is important or has any influence. He isnt a Government official, leader of a church or anything like that. He is simply a some time stand up comedian of questionable ability and his views are worth no more and no less than any other subject of Her Majesty the Queen.
While I've never really understood the tendency some people have to treat every word that falls from a celebrity's lips as gospel, the part that often gets forgotten in criticisms of people like Brand (or George Clooney, or Emma Watson, or anyone else), is the
or less. The statements that celebrities make on causes that are important to them, should be judged on the merits of content, not on the fame of the speaker.
That said,
as long as they're making cogent points, I see no problem with celebrities speaking out. They may be saying exactly what I've always thought, but the difference is, nobody's going to stick me in front of a camera and let me try to explain it to the rest of the world.