It's all about market value. If you are a while male from the US or Europe, you'll do much better with Argentinian women than someone from elsewhere from Latin America, who have lower market value. That is, they aren't typically going to downgrade socially by dating a Colombian or a Mexican. They exception being when your income is high enough that other considerations become irrelevant. It's another form of Argentine exceptionalism perhaps.
I personally have found dating much more easy going in Bogotá and Santiago, and I didn't feel like I had to provide my CV and income level, or pass a political litmus test before a coffee date, unlike here.