Nobody says that 100% are lazy.
However, most of them, a very high percentage, are taking tax-payer provided benefits in one form or another.
Just the fact they get free breakfasts/lunches at public schools shows this fact.
Add everything else into the picture, including the exorbitant amount of money needed to teach their children who are 1-5 years behind the normal American child and you are talking about a major hit to the money those who are hear and actually paying taxes have to pay.
We are, in fact, being asked to financially subsidize the lives of these Illegal Aliens so big business can have a cheap, reliable source of employees and keep costs down.
In effect, we are subsidizing big-business.