My father was the child of immigrants and was the first in his family to go to college. I have inherited nothing but an expectation I would make something of myself.
None of either of my parents families (as in them or their sisters, brothers or cousins) ever went to college, and I am the only one of the Irish wing of the family of my generation who did. My father was illiterate (could not read or write). My mother was the educated one of the two of them, and she left school at 14 (to help at home, my father was taken out of school at 11 to help on the small farm). Like you, I inherited nothing (in terms of money).
I do agree that disadvantaged whites have been somewhat neglected, and the issues facing them comparatively under-appreciated, as far as I can see (from afar) in the USA.
There are times when I am partly inclined to give some credence to the theory that the wealthy and powerful and conservative elites in the USA benefit from (and may even encourage) less well off people of various ethnicities squabbling and arguing and competing with one another because it distracts them from realising that they might otherwise realise that they have a very profound common social cause. This is partly why I suspect that what passes for 'leftism' in the USA is in many ways seen as a dirty word, sometimes imo for very little good reason.