Currently, at least 60% of legal immigration is by family sponsored(1.2 million+ each year). There is no limitation on citizen's parent immigration. After 5 years, most parents are legal to apply medicaid, SSI, and house assistant or nursing home.
The monthly cost from our tax money:
SSI: $700 +
House assistant: $800 +
Medicaid: $500 +
Nursing home: $5000 +
In 20 years (age 65 to 85), that can easily cost 1 million dollars of our tax money per person.
The problem is: the sponsor party may be rich and put the responsibility to our tax payer. Most of our retired workers can not have nursing home benefit from Medicare. It is not fare.
Solution: If an immigrant apply for welfare, his/her sponsor's income and networth should be counted until he/she earned at least 40 social security points.