Those US citizens are likely of Lebanese origin visiting, or people with something to do there, like journalists or humanitarians. So it'd be a racist fsck you to the former and saying that they are not protected to the latter.
It's not racist to protect Lebanese-Americans from the Israeli war machine and it's abundantly clear from Gaza and the West Bank that no journalists or humanitarian aid workers are protected or in any way safe when the IDF is involved.
I forgot it's world news and people don't actually read comments here before answering. I said that US government not arranging evacuation and saying "get out however you can" is racist.