It might be suspicious, but they don't get any incriminating evidence that way. It's also much easier for people visiting. Most of the time entry is denied and you can take the next plane back home. I'm fine with that, don't care. I only care if I would get taken into ICE detention. This risk grew significantly, so I simply won't go.
You make it sound so "meh, whatever", but there's a few realities attached to this:
The airline in question will likely not serve you again, but probably more importantly, when you apply for a tourist visa to just about any country on earth, you'll now have to answer that question "Have you ever been denied or refused a visa or entry into a country?" and while some might take sympathy on "Oh, yeah, we get it", you can be sure you'll be getting extra attention and some countries will threaten to deny entry too.
> Have you ever been expelled or deported from the Federal Republic of Germany, had an application for a residence permit rejected, or been refused entry into the Federal Republic of Germany?
Almost like you're just making shit up based on some anti-US sentiment.
LOL at your hypocrisy. I am a UK citizen, and I am an Australian citizen, and I am -not- a US citizen, lived and worked in both and in Europe though I am, currently, in the US. But sure, make the same assumptions that you want to think I'm guilty of making.
"Just lie on your visa applications, no countries on earth share data with each other and no-one cares except the US and who cares about them, nothing will ever happen to you."
Cool.
Actually, the idiocy of this response is even more notable when you learn that many countries will notate it IN YOUR PASSPORT that you were refused entry.
"Lie on your visa application and hope no immigration officer thumbs through your passport." Stunning advice.