Being able to move where the jobs are... aren't really a bad thing. It helps all participants. The only downside is that you might have a bit of a brain drain. Which is not necessarily bad. Those with brains goes to another country where they can work and then being able to send money back home. Poor countries in Europe did this in the big emigration and populated America. Those countries are among the richest in the world now. Both America and Europe benefited by it.
They might not be able to find jobs in their home country which could be a burden on the country. If they move and start working in another country. They might get a job that is harder to recruit to and not only just fill that spot but also pay taxes.
Most studies I have seen claim that the more exposure one have to people of other cultures, the more acceptance it will have. So it is actually the opposite. The more immigrants, the more acceptance there should be.
They might not be able to find jobs in their home country which could be a burden on the country. If they move and start working in another country. They might get a job that is harder to recruit to and not only just fill that spot but also pay taxes.
Most studies I have seen claim that the more exposure one have to people of other cultures, the more acceptance it will have. So it is actually the opposite. The more immigrants, the more acceptance there should be.