That's a separate issue from what you were (or seemed to be) saying in the post I responded to, that in the past criminal gang members would be considered more sympathetic victims than children.
I don't believe there has ever been a society anywhere or at any time where violent crime between rival criminal gangs (of adult males) was considered morally worse than violent crime where adults harm children, in both cases assuming no third parties were harmed, and there were no differences in social rank, blood or marriage relations, blood feuds, religious reasons etc. which that society and its laws considered wholly or partially mitigating factors.