They are not immigrants.
Immigrants apply for, pay for, wait for and comply with the documents that make them immigrants.
These are illegal aliens.
When people break into the country illegally, they are illegal aliens.
People cannot just MIGRATE like birds or beasts.
The correct term is Illegal Invaders.
Immigrants are invited, Invaders are repelled.
We are either a Sovereign Nation or we are a Borderless Lawless Territory ripe for the picking.