Forcing people ot wait hours for voting is a tactic used to discourage voters and more effectively disenfranchise groups you don't want voting. White majority area has 15 minute lines, black majority has 2 hours.
But wealthy New York City, where Democrats run the election commission, was a notable shit show in the recent election.
Dealing with the unequal provision of resources is a big deal, I don't mean to dismiss it, it just isn't the only issue.
It's absolutely about a failure to install proper checks on entrenched power.