I don't follow soccer but have been paying more and more attention over the years.
Does the USA have a chance to win?
Short answer: almost none.
It does have a large number of players who play in the top four European leagues (Italy, Spain, Germany, England) but, when you ask how many are regular starters for Champions League clubs the contrast is sharp.
Depending how you slice it, Spain, France, Germany, England, the Netherlands, Portugal have 8-11 regular Champions League starters in their starting XIs. Add in Brazil and Argentina who each have "only" 5 or 6 regular Champions League players but have very strong domestic leagues.
The USA, by contrast, has 2-4, which puts them on a level with Norway, Japan, Switzerland, Sweden, Morocco, South Korea. It's really unlikely that a World Cup winner will come from outside the top 8 national teams by the measure of Champions League starters -- and, if that does happen, then there are several other challengers.
That said, the USA is definitely punching above its weight. Well done, Poch!