John Brown
This was because it was violent and too extreme. Also, it was treason, which is illegal.
It convinced the South that Abolitionists were in favour of violent revolution, and drove the two sides further apart.
It made the South believe that Abolitionists were trying to promote violent revolution, and it raised the temperature of the whole debate.
The South thought it showed that all Abolitionists were violent revolutionaries. The Abolitionists (only a small minority of Northerners) thought it made Brown a hero-martyr. Other Northerners deplored the raid, as they felt it was drawing the country into war. With that said, Abraham Lincoln called Brown's raid absurd.
They thought it confirmed all the suspicions of the extremists - that the Abolitionists, behind all their Holy-Joe talk, were actually wanting violent revolution.
Some abolitionists disagreed with John Brown's actions because they were non-violent. They felt that active, armed attempts at abolition would result in active, armed attempts to keep slavery in tact. They feared the outbreak of a Civil War, which is exactly what happened not long after John Brown's raid.
no the couldn't be or else they wouldn't be abolitionists no the couldn't be or else they wouldn't be abolitionists
As with any political group such as the abolitionists in the US before the US Civil War, there was, without a doubt one clear issue of disagreement. Most abolitionists were not violent people. In contrast there were some wealthy and middle class Northerners who favored violence in order to free slaves. Thus, despite the raid on Harper's Ferry by radical John Brown, most abolitionists and most Americans did not favor violence. There were wealthy elite types of abolitionists such as the ones in New England who funded John Brown. Somehow they escaped prosecution as Brown left documentation at the farm he bought with funds supplied by the New England group of abolitionists. The documents named names yet they were untouched by law enforcement.
David Walker is a black abolitionists, he help shape Garrison's brand of abolitionism. He along with Nat Turner also advocated employing violent means against slavery and had an impact on both the South and abolitionists. In aggressive language, Walker furiously attacked slavery and white racism.
It convinced the South that the Abolitionists were secretly planning violent insurrection. After this, North and South could only communicate in warlike dialogue. It was the end of rational debate.
It convinced Southern leaders that the Abolitionists were supporting violent revolution. This worsened the division between the two sections, and brought war closer. Some have called these the first shots of the war.