Conversation so far:
Was Peter politically active?
Hitchens joined the Conservative Party in 1997, but left in 2003.
Did he write about politics?
".
Hitchens mainly comments on political and religious issues.
What were his feelings about religion?
CANNOTANSWER.
Are there any other interesting aspects about this article?
He is deeply pessimistic about recent, present and future Britain and sees himself as Britain's obituarist.
What does he think is going wrong in Britain?
the deeper gulf between the restless progressive and the Christian pessimist", and in 2010 Hitchens himself wrote "in all my experience in life.

Question: What did he say about in all his experience?
Self-contained rewrite: What did Peter Hitchens say about in all his experience?