Quakers had many abolitionists and Baptists supported the status quo of slavery during the 19th century.
They believe in many gods.
Ya they do.
They have many, many gods.
As with any country with so many religions it depends on the person you ask. Many people believe in many gods, many believe in none and many believe in the Western Gods.
Jehovah's Witnesses reject the Holy Trinity, whereas Baptists do not.
Some believe in certain gods, some believe in other gods, some believe in no gods, some believe in all the gods.
yes
one
lot
2
One