Earlier quoted context omitted.
Immigrants are in no way entitled to social services. If an immigrant on a work visa loses their job, they are required to leave the country within 10 days. However, immigrants on visas still pay full taxes. So actually, immigrants make social services cheaper to provide. Any other general goods -- roads, fire services, etc. -- are paid for by taxes, and immigrants pay all the same taxes as citizens.
There are no immigrants on work visas. Illegal immigrants, by definition, don't have any visas and legal immigrants, the topic of the discussion, have an immigration visa which grants a lawful permanent resident status upon entering the country. Diversity visa immigrants are definitely entitled to all the support and benefits. They are also not required to work to keep their status. I have not seen the DV statistics…
They're not random people though. It's a selection of people who have the drive and willingness to uproot and move to another country. I'd expect unemployment to be lower.
Now if you were talking about refugees (an actual random sample of people who don't have a reason for moving), I'd agree.