> it's the obligation of our elected officials to keep the American people safe

So if it's the main goal to keep people safe, we need to ban unhealthy foods and massively restrict the operation of automobiles. We need to massively increase regulations on air and water pollution. These things will do far more to save American lives than any number of foreigners we lock up in prisons.

> It's the obligation of our elected officials to keep the American people safe, and our borders are one of our early lines of defense to do that.

Against an invading army, sure. Against the cartel and drug-running, ok, I can see some reasoning there, although I'm not sure we're ever going to win the War on Drugs. But with regards to immigration, I don't see a solid argument that we need strong border control in order to "keep Americans safe". Studies show that immigrants commit crime at a lower rate, right? So how would stronger border control keep us safe? Economically, immigration helps us, enriches us. Culturally, also.

People joke "yep, gotta protect us from that Mexican grandma selling tamales out of her car", and I didn't want to throw that at you. But I don't think it's entirely that far from the truth.

There is a long and storied history of humans being afraid of foreigners. "They speak different, they have different values, they worship a different god. How can I know they're safe?"

But we humans often have more in common than differences, and cultural differences usually soften after a few decades in this big Melting Pot.

There are people who have interest in selling fear and distrust, even if that fear and distrust ends up hurting us as a society. When I hang out with people from other countries, I don't see this fear justified. Usually, I just see other people, who want to work and live and create art and fall in love and have a family, just like the rest of us. And if you've got legitimate fears, please bring 'em.. just do try to be careful that the fear is solidly based in reality, not just something sold by Fox News.

1800s? We had actual open borders with the rest of the Americas until, like, the 1950s.

Farmers at the time were super-worried about the shift, since they already relied heavily on immigrant labor. Their concerns didn't manifest as major problems for them mostly because until very-recently enforcement was (pretty much intentionally) half-assed, such that the border remained de facto kinda open for immigrant farm labor (even, and especially, the illegal kind).

Now that situation's arguably not good for a bunch of reasons, but we've never had a strongly-enforced border, and in fact didn't regulate Western hemisphere immigration to any meaningful degree within living memory. Changing that to a highly-selective system with strong enforcement of immigration laws to keep out a large majority of prospective illegal immigrants would be a totally novel approach to US immigration. (Good or bad, either way, you can't really appeal to US history in its defense, and "without it the country will be destroyed by immigration!" demands an answer for why that didn't already happen, to remain a viable point)

> national suicide

Why do you think that? The same thing was said about the Chinese, Italians, Polish, etc... when they all came here. Instead they helped make the country what it is today.

I also don't see anyone arguing for open borders, but straight forward paths for people to legally immigrate.

No, I don't advocate for open borders. I'm fine with keeping out criminals, people who don't value our democratic system, or people who aren't interested in being productive members of society (e.g., NEETs - people not either working or getting educated).

> Your idea is borderline insane. ... someone on the left who lacks fundamental self preservation instincts ...

Huh. Well, checking, checking... I don't feel insane. I'm feeling pretty calm, rational, and evidence-driven.

The two big risks I see from large-scale immigration is this: - people who don't agree with liberal secular democracy. E.g., religious fanatics who want to enact a theocracy. That's all good; I'm fine with screening those out. - economic damage. But here, again, the economic data shows that immigration distinctly benefits the US, mostly through economies of scale, but also partly through higher-than-average rates of college attendance and entrepreneurship in 1st- and 2nd-generation immigrants, leading to higher earnings and innovation.

There definitely are also localized *negative* impacts from immigration, particularly for overwhelmed healthcare and education systems. These do not outweigh the national net benefits - meaning, the US still benefits as a whole - but I can understand that people living in those areas or culturally affiliated with them would be anti-immigration. But these are problems we could very much tackle if we wanted to: the federal government has more than enough resources to help these locales, while still getting the long-term and nation-wide benefits from increased immigration.

So: no, I flatly deny that I'm not concerned with self-preservation. Yes, I care about compassion and fairness, but it's quite reasonable to ask that fairness and compassion be balanced with self-preservation. And yet - even after considering self-preservation, we still benefit from increased immigration.