Boy, it’s almost like someone’s been working hard at one-upping himself constantly for years, and may eventually alienate some supporters!
But let us be reasonable and treat ever supporting a politician like original sin; these people are cursed forever and can not recant. In fact, let us make out that them not following the newest escalation is some kind of moral flaw on their part. Make sure they know they have no place anywhere but in the camp of those who they used to believe in. That’s productive and useful behavior.
Legally, technically: no.
Philosophically, practically: if you believe it’s murder when you do it, you are a murderer mentally. You decided to kill a person, then followed through with it. And the first time is always the hardest.