What you give is what you get. We were in title rivalries with Chelsea in recent years and there was no hatred at all. There was no hatred with Liverpool too back in 2014/15. They've started it out of nothing with bus attack last year and then with their vitriolic comments on their forums and social media when they realized we're still standing between them and their first title in 30 odd years. The way their ex players, turned pundits and social media "stars", acted against City was out of the order. That was not healthy rivalry thing, it was trying to kick this club to the death, belittling, humiliating even at it's very own stadium when welcomed professionally great.
I had lot of time for Liverpool when they were against Rags in 2000s, but guess I was not ITK back then. They are horrible set of fans. And them and their club deserve any bad feelings from City fans.