I'm going to give you two responses to this. First the tongue in cheek response...
If you think Trump's actions are an infantile tirade, you've never seen the Bama fan base after they lose.
Now, we have that out of the way and onto the serious answer.
What the blue **** do you expect after Acosta has constantly and boldly continued to **** with the sitting President press conference after press conference after press conference? He got tossed once before for being an extreme douche. He got tossed again for being an extreme douche. You need to grow up yourself and stop acting like he's some lily white bastion of the freedom of the press and completely innocent in this situation. It was a matter of time before Trump finally snapped on him and I was glad to see it happen. If you were a politician and someone kept doing the same things Acosta did to Trump, you would have told him off by now too. If you were an adult, you'd actually admit what they are doing to the sitting President is wrong.
The majority of the media is going out of it's way to portray everything Trump is doing in a negative light and confront him at every opportunity they can trying to draw a reaction. Don't even try to claim they aren't partisan as **** with their loaded questions they ask day in and day out. I'm going to reach for the "but Obama" that I rarely do, but you and I both know the media by and large sucked Obama's dick for the eight years he was in office. He rarely got a complete hardball session from any so called journalist, but when he did it was professional by professionals. The closest Trump has gotten to anything professional was the 60 Minutes piece.
You really need to shut the **** up and grow the **** up with this nonsense. I can't believe a so called man in their 50s acts the childish way you do in starting these absurd threads.