Airlines do care. They get assessed a fee for every passenger that is turned around.

Oh look, Australia cares: https://immi.homeaffairs.gov.au/form-listing/forms/1563.pdf

> Have you, or any other person included in your visa application, ever been removed, deported or excluded from any country (including Australia)?

Oh look, Germany cares: https://preview.auswaertiges-amt.de/blueprint/servlet/resour...

> 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 mark "no" on the form and it's no problem anymore. Or mark "yes" and list it. Nothing is going to happen.