ACTUAL Fact:
Actually, the freeing the slaves issue was nothing more than the same old, same old, two-fold economic issue "the Right" continues to bleat about to this very day.
With every new State that was formed, political leadership in the Northern states began to fear the South would come to completlely dominate US politics.
And by that, be easily able continue to expand slavery into these newer states.
And through that, further and further cut off job opportunities for white workers (who would have to be paid for their labor).
Nothern leaders also feared that a continued expansion of free labor (slavery) would eventually render the North basically unable to compete with the South, economically.
The issue was economic, not moral.
Over one hundred years of the many basic rights denied African-Americans after Slavery was over should tell anyone but the most willfully self-decieved that freeing the slaves had not been about some great moral sense of benevolence on the part of the Republicans.
The issue had been one of economics.
But there is a bliss to ignorance.
For those not so inclined to such bliss, look into themes like following...
Northern fear of the Kansas-Nebraska Act will only result in the "Slave Power" South coming to dominate the US.
https://courses.lumenlearning.com/s...kansas-nebraska-act-and-the-republican-party/