Perhaps, but mere opinions are meaningless without evidence or argument. They're not worth the keystrokes they are written with.
Moreover, many of these 'opinions' are stated and defended as if proven fact, and the declaration by others that is ia mere opinion is greated, frankly, with rage and sweariness, and bold declarations that these 'opinions' are not opinions, but facts. As you well know.
You can have an opinion, certainly. And have it treated as a mere opinion is properly treated, dismissively.
Or you can claim it's really knowledge or fact, and defend it with evidence, proofs and logic.
But you can't have both.