49% is a plurality, not a majority.
If you're curious how most Americans feel now, you can read about Trump's approval ratings here; currently his poll results are net-favorable:
https://projects.fivethirtyeight.com/polls/approval/donald-t...
Bit I would like to point out that it took about 9 months for Biden's approval/disapproval rating to be around equal[1].
In contrast, it has taken Trump about 1 month to do the same[2].
[1] https://projects.fivethirtyeight.com/polls/approval/joe-bide...
[2] https://projects.fivethirtyeight.com/polls/approval/donald-t...