Group 1:
Claim 1: Racial Diversity is a strength in the classroom!
Claim 2: Students learn best when their teacher is the same race as them.
Reason: A racially diverse classroom will have some students not the same race as their teacher.
Group 2:
Claim 1: The republicans freed the slaves during the Civil War and this is why the Civil war was fought.
Claim 2: The Civil War was not about slavery.
Reason: I don't think I need to explain.
At least PragerU takes the position I agree with here: Was the Civil War About Slavery? (youtube.com)
Group 3:
Claim 1: Undocumented immigrants (UIs) should get deported.
Claim 2: The death penalty should be abolished.
Claim 3: Murder is worse than coming here illegally and murderers should be treated worse.
Reason: If you want UIs deported, then you don't want them getting free healthcare. If you are against the death penalty, then you support murderers getting free healthcare.
This claim goes against Claim 3, which I believe is a tautoligy.
