I thought I did. But now I'm learning that 49-something percent is a majority, so I'm questioning all my beliefs.
What was the participation? 60% or so? I think so. So maybe 30-35% of the people who could have voted for him actually did. In the US population large portions are unable to vote. You correctly pointed out the very young, but also the pre-adolescent young, the disobedient, the non-citizen, the precarious worker, the infirm and so on should also be included.
So the majority you had in mind is rather small compared to what you literally compared it to. I'm guessing the result feels like 'the will of the people' to you anyway? Do you feel like most usians approved of the current regime? Do you also think that 'the will of the people' is inherently democratic? Inherently good, even?
The result feels as much the will of the people as any other US election result.
The majority of the US population did not vote for him. Only a portion could vote, and only a portion of those voted, and out of those 49.9% voted for him.