Could your opinion be just an expression of your personal taste?
Perhaps you are not sure of the definition of an opinion? Opinions are always biased and reflects the feelings and impressions from the standpoint of the person making the opinion.
No one has ever said that an opinion has to be universal and a moment's thought would indicate that an opinion can't be universal.
An opinion is, by definition and its very nature, subjective.
One can agree with someone's opinion without being right.
One can disagree with someone's opinion without being wrong.