A corollary to that question would be "what will it take to end the hatred?" The country is more divided now than during the Vietnam era.
We have to focus on things that unite rather than those that divide.
Trump is regularly accused to using fear and hatred to divide. But that's not really true. History (and common sense) shows that fear is a powerful motivator. It unites people and causes large sums of money to be spent to alleviate the fear. Wars have been fought because of fear. Great Walls have been built because of fear. Man has walked on the Moon because of fear. So it's no surprise that politicians routinely use fear to motivate voters. Trump uses it, the Democrats use it.
The difference is, Trump promotes fear against outsiders who would come in and do us harm (illegal aliens and unchecked immigration, MS-13, drug dealers, ISIS, terrorists, etc.). The Democrats promote fear against other Americans (take away your rights, take away your right to choose, erase transgender people, take away your health care, people will DIE because of tax cuts, etc.).
The Press and The Left need to be called out every time they use fear to promote hate against fellow Americans. Because it's harming America.
One glaring example is Charlottesville. CNN reports FAKE NEWS to this day about Charlottesville. There were two sides to that issue, pro-statue and anti-statue. Antifa was a part of that, and so were White Supremacists, but the core was still pro versus anti on the Confederate statue issue. Trump really isn't one to be quick to criticize large swaths of Americans, and he came out with a statement that there were good people on both sides. It was kind of ambiguous as to what exactly he was talking about, since the big story of the day was that of a White Supremacist nutjob ran over and killed a woman during the protests.
People actually thought he meant there were good people on the White Supremacist side, and therefor also there were good people on the Antifa side, but no one acknowledges that last part. But both are ridiculous on the face if it.
But as it was ambiguous, it was actually a reporter from CNN who asked him the next day to clarify his statement (probably hoping he would double down on the good people of White Supremacy World). He gave a very unambiguous answer that he was explicitly talking about the issue ot the Confederate statue, and not those who engaged in violence.
But that's not how it got reported. And CNN (and the rest of the MSM) continue to misreport it, even though they know the objective truth on the matter.
So when CNN and the MSM asks the question, "Is Trump wrong, or even dangerous, to attack the media?" They're asking past the root question of, "Does the Press deserve to be criticized?"
Is Trump wrong, or dangerous, to criticize things which harm America? Reasonable people would say no, he's not.