

The most famous fountain for coin tossing/wish making is Trevi in Rome (and I wouldn’t be surprised if the whole concept came from there). You are legally forbidden from taking money back out of it there. The moment the coin sinks into the water, it belongs to the municipality, so taking it back out constitutes theft. The municipality is allowed (and indeed forced) to clear the coins from the fountain (otherwise there would be no water left after a while) and AFAIK they donate the cash for a good cause.
You’re trying to apply conventional logic to the orange one. That doesn’t work. Stop doing that. It’s all about his frail ego, flooding the zone with bs, denying everything and never giving in, and blaming everybody else for stuff he’s done.
And just to give the poor, battered, beleaguered, ever-so-stable leader a break, there are sea lanes and flight routes available to the cartels as well. They didn’t have to go through the US (but probably did).