This is beautiful! Very moving and touching. I have a few suggestions but if you already sent the letter it's a beautiful, powerful one nonetheless !

I would change this paragraph as it can be viewed negatively as you saying a problem is that we have to obey laws, "You must drive at exactly the posted speed limit. You must obey every street sign and street light 100% of the time and even then you risk getting randomly pulled over by a cop. Where others get warnings and tickets you face the risk of deportation or getting a bad record, thus, affecting your chances of ever becoming a legal American. "


I also think the following paragraph is very powerful and should replace the second to last paragraph(the current one is a bit repetitive), "We each carry these SCARS inside of us and with every passing day they deepen and multiply. One night we went to sleep as innocent children and the next morning we were awakened by the reality of knowing exactly what it meant to be an undocumented American living in the United States, the only place we know as home."