Facts, right or wrong, vs Opinions

Do all solutions create more problems? Yes. You may not like that fact, but it will remain a fact in spite of your displeasure. And, regardless of the statement made by a commenter on the above-linked column.

But, let's pretend for a moment I am wrong. Is the above statement about solutions and problems a "fact" or an "opinion"?

Even if it is wrong, it is an erroneous fact, not an opinion.

An opinion is saying "chocolate is the best flavor of ice cream" or "They Might be Giants is the best musical group". Saying "The Unicorn is the most massive of the cetaceans" is wrong, but it is not an opinion.

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