True for people that are very short-sighted and have very limited memories.
Let's see, shorter lifespans. Human rights atrocities in China, Ukraine, North Korea, and arguably significant portions of Africa and the Mid-East.
Sorry but, I just don't see the 'wealthier' comment for the average person. Savings are down, home ownership is down, etc. Things may be great for the Ultra-Wealthy but, for normal people in most parts of the world, things are worse today than they were a few years ago and there is no reason to expect them to change significantly. Women in Iran are still being shot in the street and killed by police in custody because they didn't wear their head scarf as some Religious bully thought they should. Ask family members about the "re-education camps" in China to re-educate their disfavored minority with SLAVE LABOR. Ask an Indian about the Caste system in India. How about North Koreans starving to death to support their military ambitions and their "dear leader?" And the list goes on with child slave labor for solar panels and EV car materials in Africa and Asia. And, I am no ECO **** but, what is being done in places like the Atacama Desert in South America and the Amazon is a travesty IMHO.
While this is true for some, for many it is all about the money. Why would they want to live in an apartment in Brazil and work on a farm when they can come to the USA and get a $350/night motel room, free food, medical care, etc., and have all the free time in the world to have sex in hotel stairwells and do drugs while trashing their rooms with alcohol-fueled parties with rotting food all over the room?
There is a drastic difference between a woman fleeing a death sentence from Iran who comes to the USA and is a productive member of Society and a young man crossing the border illegally to cause mayhem and destruction with no repercussions.
I suspect if you lived closer to the border and interacted with these people you speak about so favorably, you might come away with a more nuanced view of those fleeing for their lives and those coming here for the money and benefits of our current political regime.