Why are "rights" and "complaining" related? It is generally the case that my rights include both things I should do and things I should not do, and it is generally the case that a healthy, free society encourages people to figure out what they should do via discussion ("complaining"), instead of via suppression of rights.
For instance, an employer has the right to fire under-performing employees, and the right to make the decision about that on their own (as long as their decision does not conflict with other fundamental rights, such as equal protection, that society has recognized). They are explicitly permitted to make bad decisions. A society that only gave you the right to make good decisions would not be a free one; a society that prohibited discussion about whether it was a good decision would also not be a free one.
For instance, an employer has the right to fire under-performing employees, and the right to make the decision about that on their own (as long as their decision does not conflict with other fundamental rights, such as equal protection, that society has recognized). They are explicitly permitted to make bad decisions. A society that only gave you the right to make good decisions would not be a free one; a society that prohibited discussion about whether it was a good decision would also not be a free one.