Over there, they see him as a complicated figure with good and bad sides, successes and failures.
Americans tend to see only the shining successes.
If it hadn't been for Hitler and the war, Churchill would have been regarded as an embarrassing failure.
Britons also don't have the affection for Thatcher than American conservatives do.
On the other hand, Americans are more likely to be critical of FDR, JFK, and more recent Democrat presidents than the English.
Most Americans, and maybe most Britons, don't realize how owned by Soviet intelligence British intelligence was and how it hurt the U.S. They kept a lot of their failures secret. They also made us engage in terrible deals with the Soviets, etc.
For example, the war in the Pacific would have ended much earlier, if the Allies required the USSR to declare war on Japan immediately for they aid we gave them.
Remember, Japan surrendered because Russia invaded and sliced through their mainland army, NOT because of dropping nuclear bombs.
“Churchill’s less popular in Britain than he is with many Americans.”
“Britons also don’t have the affection for Thatcher than American conservatives do.”
Total baloney. Only the liberals in England think those things and that tell us a lot about you.