It's not a joke. They start these things as a joke. That's their MO.
He'll repeat it multiple times, until it starts to sound less like a joke and more like a policy.
So I've been mostly avoiding this thread and news in general for about a week. But today, this is a least a glimmer that something is still good in the world:
https://www.nbcnews.com/news/us-news/onion-wins-alex-jones-infowars-bankruptcy-auction-rcna179936...
Exactly this. Anything short of Trump literally murdering a prostitute isn't likely to move the needle. It won't be anything worse that anything else he's already done.
And I'm thinking murder would be, at best, 50-50 to actually move his supporters.