From my perspective the political game is not about actually getting things like this realised, but pushing the level of acceptance. He is making claims that ar

From my perspective the political game is not about actually getting things like this realised, but pushing the level of acceptance. He is making claims that are on a "borderline", meaning they are quite out there, but not "completely" insane. By doing this he attempts to push the level of acceptance further and move the middle ground towards his position. Good old Hegel'ian Dialectics.