about what people say, do, policies, works, etc.
Strongly disagree, saying, “This is not right.”
When reacting with criticism
That reaction is called backlash.
The new rule caused a public backlash.
→ The new rule drew strong opposition from the public.
He faced backlash for his comments.
→ He received strong criticism for his remarks.
Originally in mechanical terms
It means “the force of moving and then bouncing in the opposite direction.”
Nowadays, it is largely due to the reactions of society, public opinion, and the Internet.
It has become a used word.
In summary
backlash = a strong opposing reaction that returns unexpectedly
If you think like this, it’s perfect.