It’s a good question, here’s my take.
Outside the USA, a lot of people in the western world see no real problems caused by Trump's policies over 4 years.
However, that same group can see the damage caused by Biden's policies over only 2+ years.
Most of these people recognize that as the USA loses global influence, then their own countries become more vulnerable. So, if you remove the character assassinations, political bias and hatred, you might see why Trump still has so much support, at home and abroad....whatever the media says!