You can’t win elections by appealing to the party faithful
You said that she had “signed her own death warrant”. I can’t see the evidence for that is overwhelming. I’m not convinced that she is now less likely to become the next leader of the Tory Party than before. I always thought her chances weren’t particularly good anyhow.
And if she does become leader she clearly wouldn’t have “signed her own death warrant” with her speech this week as you claim, whether or not she wins the next general election as leader is a separate issue.
Anyway, I don’t know why I’m arguing with you.