I know that in nearby New York City, the day was full of huge protests. If memory serves, there was one here while I was away at work. I'm not sure if Plainfield is a representative of how things went through the nation, but almost all the businesses closed here were ones run by Latino or Hispanic folks from several different nations. Most of the folks who took the day off aren't working jobs where it would be a paid day off. Most of the closed businesses were small businesses which need the income. Will their voices be heard? Should they be heard?
I have no answers. Knowing a diverse group of people from various countries has enriched my own life, but that doesn't address economic factors and such. All I know is that, while the Day Without Immigrants had a definite impact here in New Jersey, I still had immigrants in my day. That's okay by me.