

Considering the high proportion of the population with ancestors who were illegal immigrants, there’s also a question of what you consider as acceptable.
If illegal immigrants in the US are all white Christian beautiful women filling jobs that locals don’t want to do in healthcare, is it different than Pedro from Honduras who works in construction but looks like he could be a drug mule.
Most people who get promoted in my company are taking holidays after being hired, are back from maternity/paternity leave, are taking lots of break, some don’t even work the hours they should.
The key is just to be visible.
Those who work a lot silently are not visible because they think they will be noticed, and the management needs them to stay where they are to do the hard work.
Just take your leaves.