"Since there is no way for them to enter legally, I guess that they should just agree to die at home...."

You are a good advocate, and your work for the poor is admirable.   

But shy of just opening our borders to all comers who simply want a better life here, or are in such desperate straits that to turn them away would be to agree to have them just die, what do you propose we do?  We have more than our share of poor and are running such a huge debt that we literally cannot afford to finance the world's poor living here.  Morally, what's the difference between those miserables in Calcutta and those who cross our southern border chased by grinding poverty?  We obviously can't afford to take in all the world's poor, yet feel humanity's call for us to do something.  What do you propose?