Virtually everyone who comments upon the topic in the news media and virtually every regular person who is not a history geek such as yourself.
So, would you like to be refreshing and state point blank that the Union did not enter the Civil War to free the slaves?
It's true. The Union did not enter the Civil War to free the slaves. The Union entered the Civil War to prevent slave states from leaving.
The Union did not enter the Civil War to free the slaves. The Union entered the Civil War because the southern slavocracy went to war against them.