That's the CONCACAF fifth round of qualifying. Panama entered at round 4, which all the other teams there had to get through first too. We don't have that kind of system in Europe ... perhaps we should.
I was only talking about whether those from the USA love Mexican or English football more. Football is clearly pretty popular in the USA, although you have to take into account their larger population.
Presumably you are talking about Americans of the USA kind.
From my experience, they love the Premier League (EPL as they call it) more than any other league. The Mexican league might have more viewers because of the time zone at which matches are played and because of availability/cost...
https://www.fifa.com/about-fifa/news/y=2017/m=3/news=bureau-of-the-council-recommends-slot-allocation-for-the-2026-fifa-wor-2878254.html
Personally, I expect all 3 host countries to automatically qualify.