It just means you think that people from other countries
are less deserving of job opportunities than people from
your country.
Society is a hierarchy of loyalty. Unless you're a self-absorbed, autistic, single 20 something, you have loyalty to others in various degrees. You support your family above my family. You support your company above my company. You support your neighbors above my neighbors, and yes, you should support the citizens of your country above the citizens of my country.It's very fashionable to virtue signal that you have no loyalty to your country and that we should all live under a one world government.
I do not share that wish. I love that we do not have a mono-culture of government in the world, but have 195 different decentralized experiments happening on how to best run the world. I would hate to have a single experiment running with nowhere to look to or flee to, if it all goes awry.
But I live in one of those 195 experiments, and my fellows that share that with me, my countrymen, I support above the other 194. That's called being human.