Can black people be racist?

Everyone can be racist; within their own continent, country, region, where physical appearances begin to differ, and those who are racist find any fault and attribute it to one’s melanin count and facial features, thus feeling superior over a certain race/ethnicity. When the Romans conquered most of Eruope, they veiwed all the British Isle Celtic and Germanic Celtic tribes (in and around Roman territory) as barbarians, savages, that’s racism. Racism has always existed, it just has a name now and westerners have organized it.