Based on the 1850-1860 Census date. The following increases are seen:
free blacks in free states: 29,900 ( + 13%)
free blacks in slave states: 22,600 ( + 9%)
Total slave population in U.S.: 700,000 ( + 17.9%)
Yes, the number of freemen increasing in the U.S. But at a slower rate than the number of slaves.
While the number of slave owing families declined, the number of slaves owned by the slave owning families had increased.
To me it appears that the numbers do not support your contention that slavery was dying in the United States.
Based on the 1850-1860 Census date. The following increases are seen: free blacks in free states: 29,900 ( + 13%) free blacks in slave states: 22,600 ( + 9%) Total slave population in U.S.: 700,000 ( + 17.9%) Yes, the number of freemen increasing in the U.S. But at a slower rate than the number of slaves. While the number of slave owing families declined, the number of slaves owned by the slave owning families had increased. To me it appears that the numbers do not support your contention that slavery was dying in the United States.
Look at the upper South. What was the rate of freedmen among all Blacks in say, Maryland in 1840? 1850? 1860? Now look at Virginia. Etc etc. You will notice the same pattern. Ever higher percentages of Blacks became freedmen. Ever smaller percentages of the total free population owned slaves. The same thing happened in the northern states as they industrialized. The numbers point to the inescapable conclusion that slavery was starting to die in the Upper South as it industrialized just as it had died everywhere else when industrialization took hold.