Equality of conditions is a good thing to ask for, equality of outcome is stupid, as even in a murderous communist regime, was impossible to achieve as it goes against basic human nature.
That's why event though I am liberal/democrat, I don't like the today's 'progressives', as they seem completely ignorant of human nature, and have no knowledge of the history of countries that went through socialism/communism, and yet want to repeat the same destructive mistakes by trying to achieve 'equality of outcome', which is impossible.
Material conditions being equal don't mean that everything is equal. Some people have parents who value certain things and push their kids. Other people have some anxieties to get over before they can perform. Some people like being ahead of the class and put in effort to stay there.
Some people are naturally stronger and some are weaker. But if you train, you will be stronger than you were, regardless.
You might not become world champion with weak genes, but you'll be stronger than everyone who doesn't train.
This is certainly an advantage that Albania had over Alabama. There are still people alive who remember the school system having to be desegregated under armed guard. The struggle continues: https://www.washingtonpost.com/news/morning-mix/wp/2018/08/1...