She knew that she'd made the right decision in hating any creature lower than human status when she was a child. Every one of them were dangerous in their own rights, even house elves could be a deadly weapon, and though many couldn't see it, she was helping by making their rights limited.
Give her a few months and she'd add mudbloods to that list. The blasted Granger girl knew exactly what she was doing when she sent her into the forest and left her with the centaurs. She knew exactly! She was supposedly a smart bit of filth, knew almost everything and what she didn't know, she'd read to find out and fill in that gap.
It was bad enough that the muggles had histories of centaurs having a wild side and becoming violent. Who was to say that they didn't get some of that from these centaurs? But regardless of that, she was the woman who made sure that they were perceived as animals and were forced into seclusion. Which they should be.
Giving her to them was like giving a mouse to a snake.
The Granger bint clearly hoped that she'd be kept busy for a longer period than she was but her time there only solidified her views of them.
Chocolate Frog Card: Dolores Umbridge - Gold - Challenge: Write about Dolores Umbridge.