I don't recall ever denying laws have changed...and it's a good thing they changed. What I'm saying is that changing laws on paper so that everything is "fair, moving forward" doesn't address all issues, and doesn't mean that we should expect everything to be even within a year or two.
In the United States, if a family is low-income, it takes, on average, 5 generations to correct for it. Which means that if any family was impacted by policies that did preclude them from building wealth within the last 5 generations, it's reasonable to assume that their descendants are still feeling the ripple effects from that.
Obviously there are exceptions to the rule.
You can find kids from poor families who end up becoming millionaires, and you can find kids who grow up in rich families who end up smoking crack. Policy-making should rely on the norms and not the exceptions.
Just because one kid ends up becoming a CEO after growing up in a low-income, single-parent family...that doesn't mean "there's nothing wrong".