Extreme abolitionists did more harm than good because they
tended towards extreme militancy, and with their use of virulent words, the extreme
abolitionists turned off Southerners to their cause. This did more harm than
good, first to the slaves, then also the abolition cause in general.
Advantage of universal brotherhood
Your answer: Its objective is to bring together science, art and religion, for the purpose of intellectual improvement as well as spiritual education. The Universal Brotherhood's goal is to unite people who wish to work towards the transcendence of the spirit, regardless of belief, nationality, gender and economic status.
Hope this helped! :)
~Dixie
I think the separation of powers.