No, it's a fact (claim).
“Mr. X is a bad person” is an opinion, but “I consider...” is a fact claim about an opinion.
> but most people would have that opinion due to previous observations about Mr. X, not due to some immaterial thing going on inside their heads that has nothing to do with the world as it is.
No, they think that (or not) because of the interaction between experience and lower-level value functions, not experience alone.
Thinking "Mr. X is a bad person" is still subject to external experiences and should be re-evaluated if given further evidence.
If it can be re-evaluated if given further evidence, surely the initial opinion was invalid?
> they think that (or not) because of the interaction between experience and lower-level value functions, not experience alone.
"Experience" entails an interaction with inner values for humans - you can't really separate experience from the inner values without cutting off the nervous system from it... at which point you can't call it experiencing something anymore.
>This is an opinion, because it's based on personal preference.
"I consider Mr. X a bad person" is also an opinion (notice it's not "Mr. X is a bad person"), but most people would have that opinion due to previous observations about Mr. X, not due to some immaterial thing going on inside their heads that has nothing to do with the world as it is.
That opinion is/should be changeable based on further evidence.
Experience/feelings/thoughts are based in the mind's interaction with reality. Sure some opinions are just a reflection of whatever internal mechanism is going on inside their heads, but lots of other opinions are not.