Um. No. I'll have to disagree on this one. There is a line when being fanatically intolerant and/or dogmatic begins to encroach upon the rights of the other individuals within a society. Freedom of opinion may be based on democratic values, but when those 'free' opinions become discriminitory and impede the freedom and development of some segments of society on the basis of religion, race, colour, age or what have you, then a line has been crossed.
In fact, fanatic and intolerant attitudes are often at the root of cataclismic divides within societies that lead to opression, war, genocide so forth. People having the 'right' to be intolerant fanatics (for democracy's sake, no less) paints a bleak picture of the future...