What do you think finally led some people to try to abolish slavery

Because people were increasingly revolted by the idea that they could own other and fellow human beings. It was increasingly recognized that the people they were characterizing as slaves were people with the same values and capabilities as them. 

This eventually led to the fight for rights of slaves. 

Why i think slave owners finnally led some people to try abolish slavery because they got to their senses and thought slavery is wrong everyone should have equal rights they shouldnt be juged by their skin color they also started to abolish slavery because it starts wars and tears apart citys and country into two sides one for slavery another for agianst slavey