Who said they were infallible? Your logic was “if you don’t want women to vote you must be in favor of Sharia like laws”. A simple example of an enlightened people in an enlightened age showed your idiocy.
"Women shouldn't vote because the 18th Amendment was a mistake. Besides, the Founders didn't want the Constitution to be amended. Sometimes."
Oh, and can women vote under Sharia law? I’ve never bothered to check.