U.S. leftists co-opted the word “liberal”; because they knew better than to call themselves what they actually are.
Churchill would have said “socialist” — and that's how I've always heard the quote repeated.
What's the opposite of “stand corrected”? IMHO, you were right the first time.
In my post I put the age at 30, in my link to a version of the quote, the age is given as 40. That was what I referred to when I said I stood corrected. It is a minor point.
Thanks