He's a Liberal Democrat supporter, and he likely backed (even if he couldn't vote for them directly) those responsible for Great Britain's plight, to include his beloved England.
I remember several years back reading a quote by him where he lamented that London was no longer an English city. No sh**, Sherlock. The people you supported did that to you.
So, thanks for the laughs, John, and thanks for a wonderful set of memories as I grew up, but you made your bed, lie in it.
Cleese is an atheist who despises Christianity.