grammaticality - How do I use a quote that was basically made up?

I know the title sounds a bit ridiculous, but that's actually what I'm asking. The sentence in question is as follows:

"Well, of course robots don't deserve rights, they're not even living things!", may be a common response to the problem dealing with future robotic ethics.

I don't know if I'm correct in using it like that, but I would like some feedback on if this is right, and if not, what should I do?

By the way, I'm using MLA format and I couldn't find anything useful on the internet about this situation. Honestly, I don't know what to call this type of quote so I had a hard time looking it up in the first place.