Also, most of Spain can walk to a functioning casino which will be more than willing to take all sorts of odd prop bets.

Not sure how you want me to respond to that. Are you getting that from a feel of yours or some statistical analysis of familiarity with polymarket in Spain? I don't think it matters much anyway, I bet most human beings don't know what polymarket is. But still, you think it warrants a conspiracy? To what end? None of this makes much sense to me.