Trump's private security force is more likely to cause his assassination eventually

 Why?

The reason for this is a private security team does not have enough resources to protect a president of the United States from all comers who want to assassinate him. It is not possible. They might be able to protect him from domestic potential assassins but not from international assassins from every country as well as terrorist groups.

Also, if someone is macho enough to lay down their lives for a president like the Secret Service is sworn to do to  "STep in front of a bullet or a bomb to protect the president there is also a lot of ego involved in this too.

So, when the President Elect Trump denies the Secret Service, the FBI and the CIA and others this responsiblity there is much more likelihood they will "Allow" an assassin to kill him. This is just about "Ego" and being snubbed more than anything else and is just "Human nature".

So, what Trump is doing is smart for a billionaire but incredibly short sighted and stupid for a U.S. president. So, I don't expect him to live very long if he keeps this up much longer.

This kind of stuff is one of 100 reasons why Putin and China think Trump is a child in the way he is dealing with all of this. So maybe he deserves the type of humor directed at him by groups like Saturday Night Live on TV.

And it's true he is acting more like a Reality show actor wanting adulation at all his "Victory" rallies much like narcissistic singers and actors need the attention of their fans.

However, world politics might be the most dangerous game anyone ever plays. 

Trump is completely out of his league and demonstrates this with every single thing he says.

So, keeping him alive would be an extreme job even for the Secret Service and has been up until now and can only get 10 or 100 times worse now.