Should illegal immigrants be entitled to receive benefits?

I strongly disaggree with this statement that - illegal immigrants be entitled to receive benefits.
When you know they are illegal migrants then it is better you should allow them only limited privileges. Who knows they may not really be good people. We have seen so many cases that being legal people are really dangerous and they may misue the powers. Hence i believe first thing is they should not be allowed to enter the country at all. Even if they migrate through illegal methods then they should not be given all the rights to do anythng. they should be constantly montitored whatever they do.
They should be kept a close watch on these people so that they do not misuse the privileges given to them. They should be constantly monitored. Their relatives and friends should also be watched. These people may not be bad but their company in whch they mix may not be good. So people and the government should be very much cautious about such illegal migrants.They should not be given all benefits what the legal migrants and the native citizens are getting.
Proper protection should be given to people who are living near by to these people's house. There is no guarantee what these people may do. No one can expect people to be good without any reason. People are not always good as we know. Especially the illegal migrants. A proper background checking has to be conducted before letting them inside the country.
Hence they should not be given full privileges.