What in a chart (whether it’s aspects or whatever) shows someone who is racist. Or is it a cultural thing?
The word "racism" is a modern day term. It is used merely for political reasons.
Decades ago, before academia and science were taken over and corrupted by certain outside commercial powers,
EVERYBODY knew that :
the Human SPECIES consists of DIFFERENT Races. = True science, and backed up by facts. eg clear cranial & skeletal distinctions.
However, now they are telling people :
1) "THE Human Race" ( You will hear, see this repeated often & everywhere ..but it is scientifically INCORRECT).
and
2) that "we are all the same" = yes, but in flesh & blood ONLY.
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So, to answer your Question
Such a thing as "racism" (for reasons that should now be obvious to you) cannot be defined in a birthchart.