User blog comment:Silkworm Bot/Unpopular Opinion/@comment-26675961-20170312234213/@comment-2054732-20170313002047

Villians is a strong word, more like they are on the opposite side of the conflict. Also it's less about loyalty and more about you can't expect someone to change sides when your side has been worse to them then the side they left. Lapis, Peridot, our Ruby, and Pearl were all treated better by the crystal gems than they were by Homeworld, so it makes sense that they would change sides. The rubies have been treated like dirt by the CGs why would they want to join them.