If this isn't obvious to you, then you've been studying racist history. Asians slaughtered their way through much of Asia with Genhis Khan. In Africa, the Bantus genocided their way through the entire subsaharan region. Arabs ran huge slave societies and conquered much of the middle east and North Africa. Amerindians genocided each other. The list goes on. And none of these groups - including europeans -- should be made to feel guilty for any of this. To suggest that one group should feel bad for their history but not another is just bigotry masquerading as history.
We are all standing on a pile of bones. There is no special guilt to the pile of bones that Europeans stand on, nor is that pile particularly larger than any other. Nor is there any such thing as collective or inherited guilt.
"Since they were racist in the past, we get to be racist NOW!" At least you admit you're not morally against racism, you're quite for it, just targeting Whites is perfectly OK.
>You might think it's unfair
There's no "think", it is logically and factually racist, unfair.
The reason why you're seeing this more and more is because White liberals are the only self-hating subgroup [0].
"Remarkably, white liberals were the only subgroup exhibiting a pro-outgroup bias—meaning white liberals were more favorable toward nonwhites and are the only group to show this preference for group other than their own. Indeed, on average, white liberals rated ethnic and racial minority groups 13 points (or half a standard deviation) warmer than whites."
[0] https://www.tabletmag.com/sections/news/articles/americas-wh...