Answer:
It hinders people from analyzing past events or history objectively
Step-by-step explanation:
The effect of the “cancel culture" actions on History is that "It hinders people from analyzing past events or history objectively."
This is because Cancel culture is a term that describes the situation in which people who have a differing opinion often seen as offensive are excluded from public space or exterminated such that their career or public image are dented.
Such negative repercussions of cancel culture tend to "hinders people from analyzing past events or history objectively, " as people would be afraid to talk objectively.