I mean, this is obviously not a novel take: It's the position of basically the most evil characters imagined in every fiction ever written about AI. I wish you were right that no other real humans felt this way though!
Plenty of people believe "a machine will never be conscious" - I think this is delusional, but it covers them from admitting they might be ok with horrific abuse of a conscious being. It's rarer though to fully acknowledge the sentience of a machine intelligence and still treat it like a disposable tool. (Then again, not that rare - most power-seeking people will treat humans that way even today.)
I don't know why you'd mention your toaster though. You already dropped the bomb that you would willfully enslave a sentient AI if you had the opportunity! Let's skip the useless analogy.