If you are lucky that works, but such conversations can also easily end with everyone in tears, “You don’t even like me!” “You don’t want me to have any fun!” “Everyone else was playing nice and it’s all your fault X!” etc. or various forms of subtle nastiness that goes under the radar and doesn’t disrupt the parents [which for some parents counts as mission accomplished]. In my house outcome depends substantially on whether kids (and parents) have had enough sleep the past few nights.

Some of my childhood friends with “sane” and “reasonable” parents (and who themselves grew into lovely adults) were incredibly cruel to their younger siblings, but were smart enough about it that adults never noticed.