The real issue is not that conservatives are failing to address racism, but why today’s American right wing is increasingly more accepting of racism against minorities. The heart of the matter isn’t about any particular party or political lean, but about the sociological effects of demographic changes on the macro scale.
Look all over the world, and all throughout history, and you will find that in every nation, there is always one socioeconomically-dominant demographic, whether that demographic is racial, ethnic, or religious in nature. When that demographic begins to believe (rightly or wrongly) that its dominance is being threatened by “lesser” demographics, that dominant demographic will begin to take measures (successfully or not) to preserve its own dominance. In China, the dominant demographic is the Han. In Rwanda, it’s the Tutsi. In the Philippines, it’s the Catholics. In America, it’s the WASPs, the white Anglo-Saxon protestants.
For example, in 2006 the Republicans in Congress voted almost unanimously to reauthorize the Voting Rights Act. But when Obama was elected, suddenly we began to see signs saying “We want our country back!”, “Send him back to Kenya”, and so forth…and by 2013, the Republicans gave a full-throated cheer when the conservative-dominated Supreme Court gutted the Civil Rights Act.
What happened? When a black guy was elected to the White House, America’s dominant demographic’s fear of losing said dominance began to inform much of Republican party dogma. That’s why a majority of white men and women voted for Trump…and why very few Republicans even blinked an eye when “we are a nation of immigrants” was removed from the mission statement of USCIS.
In other words, we’re watching a process that has happened so many times already in recorded history. The only question is whether we as a nation and as a people are educated and united enough to overcome the transition of a majority-WASP nation to a majority-minority nation.