Prior to BirthOne thing that Crowfoot and Patchfoot have in common is that their mothers were both born outside of the clans and that their fathers were not present in their lives. That, and the fact that their warrior names are the same and they're both bitterly cynical, these are arguably the only things the two have in common. This cynicism isn't even unique to themselves; it's more or less a generational trait to those who were mere children at the time when the Wicked nearly destroyed them all.
Patchkit and Crowkit were born in a time of fantastically huge chaotic turmoil. A force that cats didn't fully understand encroached on them all