The reaction given by rival fans to the current slump of Manchester City and Guardiola is of course very natural, especially if we look at how previously Manchester City has dominated the league which made many rival fans sad and disappointed, so they vented the mocking this season when Manchester City was in a slump, I think their current slump is not something that will be countinue Given Guardiola track record so far, So I don't think it will take long for them to rise and become title contenders again, at the moment, Guardiola just needs to get Manchester City back on a positive path and we will see them back into a strong team later.
I mean they have been winning the league so many times, they are the ones everyone hates because they keep winning, when you win that many times and not let anyone else have any fun, then of course you will be hated.
And when you are hated, people are going to cheer when you are down, and City is as down as it gets right now, they haven't had a win in seven games, I do not think that could get any worse for them, they should win their next game with ease, if they fail to win again, that's going at unbelievable levels. In the end, we are going to see them win, but cheering for them to lose is a very normal situation, City fans cheered enough, it's been years since last time we saw anyone else cheer, hence why it's normal for others to cheer as well.