https://www.nytimes.com/2022/06/24/us/ghost-flights-migrant-children.html
Here is a list, more or less chronologically leading us to this day :
The dangers of socialism and hyper-inflating currency, which is what the Venezuelans are running from.
The dangers of American drug prohibition, which contributes to Mexico's narco-syndicates being powerful enough to control enough of government to hinder progress and make them less likely to be able to assimilate immigrants from south of their border themselves.
The dangers of immigration prohibition and the effect that has, especially in border states.
If number 3 is not addressed, the inadequacy of the federal government's response to enforcing what is federal law.
The primary system that provides incentive for politicians like Abbott and DeSantis to do things like this to appeal to nativist, populist MAGA types.
The economic reasons many who vote in those primaries are uneasy about immigration given the changing nature of the economy and how to adequately address poverty.
Education that convinces many that the national wealth is some kind of fixed pie rather than something that expands, or that overpopulation is a larger concern than low birth rates and an aging population that makes immigration a benefit to not just immigrants, but current American citizens.
The accusations of fraud, which may or may not have happened in the DeSantis example.
How to best ensure things like assimilation in the areas that matter like shared constitutional values and a tolerance or even a celebration of diversity where that's a positive.
Combating NIMBYism prevalent on both sides of the aisle in geographic areas that could benefit from the kind of positive change immigration can bring.
Like... I could go on and on with things that matter most before ever getting to, say... the character of specific individuals like DeSantis, which I find much less relevant.