Went a few years ago. Americans were a minority. Lots of Brazilians, some Argentines, lots of Asians. The market now is clearly wealthy foreigners.
And there aren’t really that many rides, compared to a Six Flags or Busch Gardens.
You said what I was going to say- the proportion of foreign to American tourists has been increasing steadily for at least 25 years at Disneyworld- high ticket prices also deter the riffraff, including me.
Six Flags and Busch Gardens are cheaper than Disney. As a result, you see a number of "inner city" types there. I'm thinking the high ticket prices at Disney are a deliberate effort to keep it unaffordable to "undesirables".