I've seen a lot of proposals on Meta lately, but I think this one makes the least sense. While we're at it, we might as well suggest creating a DIY board or something.
Go to politics and society or off topic board create a thread with the title which you suggest and it’s good to go!
Yes, if it's an interesting thread, it will fit in one of the two boards. Creating a new board for that, which is also going to have an average of almost zero threads created per day, makes no sense at all. As has been said, he may want a new one to be created because those two boards won't pay him for what he writes, but the fact is that the new one, in the highly unlikely event that it were to be created, wouldn't either.