The only right in nature is power. That holds true for animate as well as inanimate objects. We can surgacoat anything, but without power all the talk about justice and rights is meaningless.
Societies curtail all sorts of freedoms. Our own society deprives convicts even of life -- an inalienable right according to our own Delcaration of Indpenednece. How can we reconicile our conviction that life and liberty are divine human assets, and support a death penalty, is beyond me. Our delcaration of such immutable rights also did not find slavery incompatible with the new Republic either.
Our society curtails speech that contains “fighting words,” various types of “defamation or “libel” etc., but the fact is we do in some ways curtail speech when it is deepend to be likely to lead to violence or in some ways injures or causes to worry (i.e. harrassment) individuals or groups. Again, these are arbitrary decisions based on our value system and priorities.
Croatian constitution is based on the concensus of its legilators that inciting intolerance against religious or ethnic groups is potentially explosive and dangerous and needs to be curtailed. It considers such behavior abusive. This is no more “immoral” than our own exemptions of “unprotected speech.”