This is true.
For example, this is the case with hate speech laws. Since it is not precisely defined or understood what hate speech actually constitutes, many and no things at the same time can be considered to be hate speech, so it can be used politically to reduce the freedom of expression and the rights given to people by the first amendment.
In the case of Plessi v. Ferguson (1896), the U.S. Supreme Court ruled on the doctrine of Division, but the equality of citizens and which for half a century delayed the process of obtaining black citizens of the United States equal with white civil rights. This decision gave the legal basis for racial segregation in the USA, forcing black Americans to study in schools only for blacks, to use special, reserved for them public places.