Even to take it at face value, 'left' and 'right' are only directions, not absolute positions. There is no objective centre.
> Colbert then mocked Bush's sinking approval ratings:
> Now, I know there are some polls out there saying this man has a 32 percent approval rating. But guys like us, we don't pay attention to the polls. We know that polls are just a collection of statistics that reflect what people are thinking in reality. And reality has a well-known liberal bias ... Sir, pay no attention to the people who say the glass is half empty, [...] because 32 percent means it's two-thirds empty. There's still some liquid in that glass, is my point. But I wouldn't drink it. The last third is usually backwash.[18]
https://en.wikipedia.org/wiki/Stephen_Colbert_at_the_2006_Wh...