I didn't say it was a failure, but the quote from Jesus was City are "used to winning titles" given you've won 2 since you won the lottery, and 4 in your entire history, that's just marketing speech he was probably made to say, because it's not true.
We could discuss semantics and whether due to the language barrier "titles" meant "trophies" in general, sure but in terms of major trophies you've only won one FA Cup and 2 PL titles. In the same time frame United have won exactly the same amount, but we're in the middle of a huge transition.
You're choosing to include the League Cup and Community shield in City's totals but not anybody else's, so technically United tied with 6 (2 PL, 1 FA Cup, 3 Community Shield).
This is what I mean by manipulating stats to suit your argument. You're not the most successful side in domestic competitions, we've won the exact same amount as you in that time.