Uncut and glad for it. No scalpel coming anywhere near to my junk or that of my kids when i have them.
It has no benefits this day and age, perhaps once it did. But if it doesn't now, i'd rather keep al blades away from my pecker.
That said, i'm not sure i'd argue it immoral for most parents. While it is a Remnant of a bygone age born from religion and tradition, i imagine many don't see it that way. Call it ignorance, but i think many buy into The idea that it's The healthy thing to do. Even if it isn't, if you truly believe that and act in The bestwil of someone who can't make that decision yet, i don't think you can call it immoral.
If you, incorrectly, believe there to be only upsides to circumcission and only risk and downsides to not having it done, would it not be immoral not to do it and protect your Son from Harm?