[DiogenesLamp]

No. You're a big boy, toughen up. And there is no ‘’valid’’ argument that slavery was on it's way out.

Here is your evidence.

If the map went back to 1776, it would show an even better trend, because when the nation started, all of the states were slave states, and the movement was all in the direction of abolition.

You think the other states would buck the trend indefinitely?

[BroJoeK]

DiogenesLamp: "If the map went back to 1776, it would show an even better trend, because when the nation started, all of the states were slave states, and the movement was all in the direction of abolition."

Your map is inaccurate.
It should show, but does not, slavery in:

1. California (1790-1850)
2. New Mexico (1790-1860)
3. Utah (1860)
4. Oklahoma (1830-1860)
5. Kansas (1850-1860)
6. New Jersey (1850-1860)
7. Delaware (1860)

Regardless, it does at least show the expansion of slavery from the East Coast to more than a thousand miles west into Texas.
It should also show slavery in Oklahoma, New Mexico, California & Utah at some periods.
Further, as DiogenesLamp advocates, another SCOTUS Dred Scott-type ruling would make abolition "unconstitutional" in every state!

And then there were the hopes & plans of Southern adventurers known as "Filibusters" of the Golden Circle: