If he had stuck strictly to cops, we'd be all good, but one of the first people he murdered wasn't one.
Going after the families of bad people when they really didn't play any role in the bad person's actions is abhorrent and indefensible. Kids shouldn't have to pay for the sins of the father and all that.
It doesn't completely invalidate the good he did do/say, but it's definitely a black mark on his record and why I can't really get fully behind him, even for meme reasons.
I've brought him up before, but I think Micah Xavier Johnson is overall a better example. Apparently he was a sexual harasser when he was in the military, which is obviously terrible, but at least you can say when he went on his spree that he didn't go for any non-cops.
I'd say it's very different cause royalists could trace their bloodline at some point in the future and cause some real problems. I'm not at all a fan of it, and I would not want to be the one to carry out the task personally (it's very dirty work), and I'm not even sure I'd be able to make the call myself even knowing the likely implications. Anyway, not op but just wanted to share a couple thoughts.