That's it, right there! Your entire worldview is concerned only with how something affects Trumps political message.
The Emanuel Family is an evil entity in so many ways. On this website, pre-Trump, that used to be far more than enough of a reason to justify refusing to work with them. Now, people here only weigh their utility to Trump. The collective moral compass has been replaced by unyielding fealty to a single politician.
I realize you can't see why, but it's very creepy to some of us.
We don't believe in corruption of blood here in America. Each person is an individual, no matter what family they come from.
Thus, you have situations like Peter Hitchens as a conservative, with his brother Christopher Hitchens being a liberal.
I don't know much about Ari Emanuel, but one thing I do know is that being born into a given family certainly doesn't make anyone intrinsically good or evil...
Vote Trump!