that there are unresolved issues connected to class/race and gender which need to be addressed. A little empathy goes a long way here.. Straight white males have enjoyed privilege historically, over other groups. The richer and more educated they are, the greater the privilege. Of course this isn't always applicable, of course demographics have been pitted against other demographics historically - poor whites against poor blacks, poor whites put to police slaves and catch them for example. So this turmoil didn't start with "Identity Politics" or with leftist ideology in the 20th century, the story of this turmoil began with the origins of this country.
But today, when "Black lives Matter" talks about criminal justice reform, it's highlighting the very serious issue of how over-criminalization disproportionately affects african-american men ( and women), but there's room for unity with whites on this because over-criminalization affects poor whites - yet the issues BLM addresses is seen as a threat and part of the over bearing push of "Identity politics" . Addressing the concerns of groups is not a threat to you, especially if everyone wants a healthy economy and wants their community to thrive. If you want them to understand you, understand them. And then maybe cynical politicians will have less ammunition to divide us with - cynical politicians Like Trump whose xenophobia and racism appealed to millions.
As for the Democratic Party, its leadership has been mainly straight, white and male- I don't see how the party itself could be a threat to the straight white male.