If we are going to compare the 2026 world cup with Qatar and compare the situation of both countries, the whole point about this world cup is about having much more potential than Qatar because especially in America we have more sports facilities and they invest even more than Qatar if they need.
I think it is not about investing as much as Qatar did, because nobody really needs to invest as much as they did, it was a stupid move to give the world cup to a nation that had to invest that much to be worthy of it, makes no sense at all. It is official that it was bribery that made Qatar win it, hell Fifa CEO ended up getting fired for accepting bribe, what else proof do we even need?
But, USA or Mexico or Canada do not need to spend this much, nobody should, they just need to maybe polish up a bit, like maybe 10-20 billion, but that is about it and nothing else is needed on top of that. And that is with all the added improvements, maybe not even that much if they do not want to do anything at all, they can just stay as it is and can still do it without a doubt.
that's the advantage of the 3 countries hosting the world cup so that the cost burden for stadium infrastructure and others can be divided equally
of the three countries, mexico has the lowest economic capacity while the USA and Canada have a pretty good economy, in this case, mexico is quite profitable