I'm going to preface this by saying I don't care which way any of you are leaning politically.
That being said ... what are the possible etiquette pitfalls of hosting world leaders at Mar-a-Lago? Sure, it's owned by the President. But it's also open to hundreds of other people. When the Japanese Prime Minister was there, they ate in the dining area with other guests and there was even a wedding being hosted at the same location. (If that was my wedding, I don't know how I would feel about that part either.)