Sure, many illegal aliens work hard and are interested primarily in building a good life for themselves and their families. But then there are also people like these, whose actions have left a trail of death and shattered lives among the citizenry.
With respect to immigration, perhaps the greatest crime against our society is in fact being perpetrated by Democrats looking for new voters and Republicans attempting to placate big business interests seeking cheap labor. For such as these, I imagine no body count is going to be large enough to change their views on amnesty. So much for the idea that "Governments are instituted among Men, deriving their just powers from the consent of the governed". The governed, these days, appear to be just so many extras in the dystopian horror story being scripted by the ruling class.