The Whig party was pretty much a temporary party itself that predates the Civil War when politics and voting was in an entirely different place than today, the Whig party only lasted 22 years and they never won the female vote which is 54% of the vote today.
The republicans were first formed in 1854 the Whigs were gone by 1856 and by 1860 the republicans had the majority party in the Senate, the Congress and had the Presidency, that won't happen in post Civil War America.
“they never won the female vote which is 54% of the vote today.”
Of course, there was no female vote.