By virtue of the fact that your family went through Ellis Island, they were "legal" immigrants. My green-card-holding-for-55-years-until-she-died grandmother had to wait in France until her green card was approved, and she was married to someone in the military. She did it legally.
Yes, I have a problem with illegal immigration, and it isn't because of jobs, or minimum wages, or even "sending money out of the country". It's because when people are here illegally/undocumented, they are set up to be exploited by pieces of shit for whatever money they do have/earn, or become victims of human trafficking, or have to live under fear of deportation and therefore can be blackmailed into doing criminal activity. I saw this first-hand in Seattle with people our church worked with (especially single-mother Somali families in one part of the neighborhood).
My question would be: why are people against immigrants having to go through the process the government has for immigration (whatever it is) and register to be here legally?
Why is it that Afghans here who have advanced degrees, can speak English and have been (literally) bleeding for the US or have had family members killed or threatened because they work for us can't get a visa to the US, but there are 11M or so undocumented people who just didn't bother to go through the long process and get denied by our government can say "screw it, I'm coming anyway"?