I'm really just neutral about race relations, there's some racism and that's just bad, we are all equal, and people shouldn't care if we are black skinned or white skinned. We should be united, if we are united we will be able to solve life big problems, and also problems with the Earth itself.
According to Albert Barnes, their mistake was that they didn't speak against slavery. Although many of them believed that slavery was against god and against the idea that god made everyone equal, they didn't do much against it out of many reasons, either they thought it was a necessary evil or they were afraid of the public reaction.
The Seminoles were a Native American tribe in Florida, they consisted of other tribes kicked out of their land. They launched raids on settlers in northern Florida and Southern Georgia, so I'm pretty sure if you are being raided by a group of people you want them gone.