The importing of immigrants causes the costs to skyrocket - especially school costs (75% of our property tax bills). You had American homeowners basically funding the education of foreign students, and basically end up with no more American homeowners in an area.
I grew up on Long Island, and worked there for a while.
It is ASTONISHING how illegal immigration has transformed the place. Even more astonishing is how the Americans still left there regard the waves of dependent aliens there illegally like people regard the weather -maybe good, maybe bad, nothing you can do about it...
Thats often overlooked. I hadnt thought of that myself. Theres so much other damage illegals inflict. Its a long list:
Huge welfare costs including fraud
Increased violent crime rates and gang violence
Increased property theft and burglary
Identity fraud
Drug trafficking, particularly narcotics
Human trafficking
Dilution of culture and common language
Voter fraud
Threat to sovereignty from home countries