As a big Obama fan (I took my daughters to the rallies and my oldest got to shake his hand), I was disappointed by some of the same results (without agreeing completely with your analysis. For example, if he had stood up for Crimea, things might be different in Ukraine now, but we almost might have been in a war earlier.)
Regardless, there is simply no comparison between prior administrations and Trump. Imagine if Obama had issued his own bitcoin trading floor and written executive orders to have no oversight, or arrested a judge, or used the DOJ to investigate his opponents, etc, etc? Republicans would have rightfully gone nuts. What happened to states rights, less federal government? From where I sit, it looks like freedom is only for straight, white, evangelicals.
Why stop at Obama (although for some reason Obama pisses off Republicans alot)? Why not Reagan and Clinton? Keep going, there're many obvious failures.
It is intellectually dishonest to not acknowledge that Trump is acting unconstitutional (illegally) in a manner that this country has likely never seen, outside of a few extremes inacted during the civil war and WWII.
It's like his supporters are afraid to acknowledge any of Trump's failings. Any "what about.." are ludicrous.
https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.youtube.com/watch?v=Akq0xeu-RHE&ved=2ahUKEwiqv4Kl84yNAxWbFTQIHZUhFsUQz40FegQIDxAJ&usg=AOvVaw0Z6cFp81YykJTS_TCZ3Q1m