You know there's football outside of beating Man Utd, Chelsea, Arsenal and Liverpool, right? And just winning trophies? Or should I presume that your elders taught you to sufficiently disregard the lower divisions as below you to the extent that winning all the time down there and getting promoted wasn't seen as any kind of achievement.
I get that Man City have definitely been through a lot more than a lot of equivalent Premier League clubs in the top half, but my point was just that almost everything you've seen of it has been when they've been on this massive upward curve. So I really don't get how you've seen them be "awful", win nothing and have "terrible players".