It would help if the Democrats weren't the party of the social-justice crusader stereotype too. Being the party of everyone that is not the majority is a good way to pat yourself on the back and feel self righteous but it won't win elections. The economic solutions from both parties aren't too different but when you talk with joe-schmoe he generally doesn't even know the details of either parties economic policies but will know and have an opinion on gender-neutral bathrooms etc...
That's a culture-war question, not one of party policy. The Democrats can't hope to win over white voters by silencing minority voices; so it would be doing the hypocritical thing, for no profit. The smart money with social transformations is staying the course until the aggrieved can no longer "remember why I was even angry". The real policy challenge is digesting the hard core of atavists who disagree with every post-Civil War policy other than Jim Crow.