I'm absolutely shocked at this. Inciting the ACW? Zany? Always self-righteous? Goodness. Those zany abolitionists, how crazy believing enslaving humans is just, plain wrong.
You shouldn't be shocked, it's plainly evident in the historical record. That is not at all to say that the cause of the Abolitionists wasn't proper and right. They wanted to end slavery, the moral thing to be for. But what's lost there is that there were far more anti-slavery people in the North (and some in the South) than there were actual Abolitionists. Most anti-slavery people did their best to avoid being associated directly with Abolitionists, despite popular parlance lumping all anti-slavery sentiment under that term.
Why were folks leery of the Abolitionists? Because they were effete, always self-righteous (not an exaggeration by period accounts), and some were personally rejecting of blacks (the attitude to provide for them and move them on to Canada or elsewhere, but not have them live next door). Some Abolitionists were very condescending to women in their organizations. Many of the top Abolitionists were independently wealthy, commanding publishing resources and funding some pretty extreme measures (i.e. John Brown), yet being careful not to dirty their own hands in the cause on the ground. Some Abolitionists at that level even advocated secession of the free states from the United States. That's why folks, anti-slavery folks, were leery of the Abolitionists.
You'll notice, for instance, that Frederick Douglass couldn't support John Brown's zany raid because he knew it was doomed to failure, but more importantly he realized it would doom the servant population to overreaction by Southern slaveowners, and that happened. Many Southern servants paid a high price in the crackdown after JBs raid, in effect the Civil War itself which was hard on everybody.
Now to understand your reaction -- Once the Abolitionists had helped to incite the Civil War with their hate speech and terrorist support, the war did after all ultimately lead to the slaves being freed, so who was going to condemn the Abolitionists -- or John Brown -- after the war? Even up to today. The sainthood of Abolitionists is assumed. I won't say politically correct.
But that's to ignore that the real agents of change were the quiet ones on the ground, the more numerous and good Christian anti-slavery folks of all races (Underground Railroaders, slave camp teachers, fund-raisers to support contrabands, forward-thinking Union commanders in the field etc.) who did the real work that set the stage for Emancipation, those who did more than sit in their parlors as figureheads, writing Southern hate literature and funding guns for terrorists.