You know what I see happening? I see the left over the last several years criticizing and attacking white people. This was very evident during the Kavanaugh confirmation hearings.
Since shortly after the election of President Obama, the left adopted a political strategy that was centered on racial division. They used accusations of racism to try an silence critics of Obama's policies, such as labeling those who opposed universal health care as "racists". That was the birth of the race-card strategy that the left trotted out every time someone dared to criticize Obama's words, actions, or policies. Now look at how that race-card strategy has transformed over the last 3 years. It's now become open season on white people, who the left points their finger at ever time something doesn't go their way politically.
Unfortunately, because the left has the support of the mainstream news media and academia, their identity politics strategy is working. They are successfully stoking the flames of racial divide in the country and achieving exactly what they set out to do... Divide America to achieve political power.
So... Is there an increase, at least publicly, in racist language toward minorities by whites in America over the last few years? I'd have to say yes. It's not however, the result of hatred increasing for minorities by white people, which is why you don't see a measurable increase of racially violent incidents occurring. The increase of racist language is the result of something quite different. The reason for that increase is directly due to the left's steady stream of anti-white, anti-Christian rhetoric... aka their "racism". The constant anti-white racism we hear from the left has gotten so bad, and so ridiculous, it's forced white people into having to defend themselves. Unfortunately, when people have to defend themselves against race-based attacks, it often results in them fighting racist attacks, with racist attacks.
Since the 60's, race relations in America had gotten steadily better every year... Thanks to the left and their adoption racial politics, race relations in America have turned around and now things are steadily on the decline. If those on the left really give a damn about race relations, they will stop playing the race card, stop their anti-white racism, and put an end to their identity politics strategy which is tearing our society apart.