Do YOU identify as being part of a marginalized group.... ? How has it impacted YOU and YOUR community?
Your parents and grandparents may have had economic difficulty and limited access to education but your description of YOUR status is not similar to your parents and grandparents. It appears that they have succeeded despite the barriers they faced and you are the beneficiary of their successful navigation of difficult waters.
You have not struggled socioeconomically or in terms of access to quality education. You are on the fortunate side of the inequity equation and to claim to identify with those who have faced struggles because your forebears struggled would look like an attempt to game the system. I can't recommend it.