You link to a Wikipedia article that cites Gallup. It’s fun to go to actual sources (you can do that, you know?) to find out if what you said is anywhere near factual (as opposed to your ‘truth’).
On day 936 of Obama’s presidency he had an approval rating of 40%. On day 922, Trump is currently at 42%, precisely the same as Reagan during the same period. Rasmussen, who was far more accurate in the lead up to 2016, has Trump at a higher rating than Obama.
The fact that Trump, who is openly hated by the media, is even in the same ballpark is incredible and indicates a rock-solid base of support.
41 and 43 Bush were at 71% and 60%, respectively.