I always supported the idea that if you are going to do a world cup, then you do it in a nation filled with football history and culture. There is nothing else you need, it could be even a poor nation and they would still have everything you need.
Argentina is famously a poor nation, they had record breaking inflation after inflation and you could stay at a five star hotel literally for 10 bucks a day, that is the cheapness level and poverty level they have, and yet if you do a world cup there, between the amazing stadiums and the football culture and people who would love to watch it, you are going to end up with a lot of fans and a great world cup. Wealth doesn't equal a good world cup, love of football does equal it without a doubt though.
it's not easy to host the world cup, even a country like brazil ends up in a lot of debt for hosting the olympics, with huge inflation it will only kill argentina if it hosts the world cup
I see that the 2026 world cup is actually very unique because the 3 countries have different economic strengths and in the future it will be a great solution for other countries (to not host the world cup alone)