All Americans and myself included pay taxes but what do we get in return?

I have been noticing this lately. Maybe i just did not know then or something. I have 2 co-workers at work who may/may not be paying taxes. I really don't know. But from my guess, i think they are illegal residents. I always pay taxes yearly and i guess they dont. Out of my curiousity, i asked them where they come from and stuff. They told me that they cam running from the border and they told me that they dont even have an ID. So i thought, if they dont have social number, then how are they going to pay taxes? i suppose they dont but i will not be the as****e at the job. i just kept it to myself. I know the the two of them have kids. One of them has 4 and the other has 1. They have lots of coupons (baby milk discounts, juices,cheeses, stuff) from the government. they also have food stamp. (how in the hell that they get food stamps if they dont have papers??) They told me that all their babies were born free of charge (are you kidding me?? i have insurance and i will still have to pay about $3000 when i have a baby!!). Even though i am making more than them because i am a waitress, but i think this is not fair because they are illegals and they get those benefits. Why don't i? Why not my friends who had babies? A few of my girlfriends had babies and they did not even get any coupons! and they paid a lot of money ($3000 and up) to deliver their babies. who what happen here? we are the ones who paid taxes and who are supposed to enjoy those benefits not them. i feel that this is unfair. how in the hell they get free child delivery and hospitalization after child birth?? plus the food stamps? plus the coupons?? are those out tax money? the government should really check their papers before they are granted the benefits. its not fair. Its our tax money not theirs.