This is simply not true. Looking at the three mainstream cable channels (Fox, CNN, MSNBC) Fox hardly ever critical, MSNBC is almost exclusively critical, and CNN is pretty in between. Fox is by far the most popular of these three.

Similarly, the NYTimes and Washington Post are usually pretty critical of Trump (unless he's bombing people, in which case they love him) and the WSJ are somewhere in between.

Then, consider that Americans are increasingly not getting their news from these sources and podcasts, blogs, social media, etc. are becoming the primary source of news for many people.

All this to say, to claim 97% of media is critical of Trump is a wild fantasy of victimhood that has no basis in reality.