@InfraBlue,
There are of course, very few facts in the human world:
- mathematics
- physics
- solid objects
Not even names are fact - just agreed upon, yet ultimately, changable labels. Same for the borders of countries, and many other things we consider 'fact'.
Anything a human can change is ultimately, some form of opinion, including most anything a person thinks is right or wrong.
Doesn't stop a person from trying to make their opinion the right opinion... and agreement on right & wrong is even largely necessary on a societal scale...but that doesn't alter the reality that it is opinion - of what a person (or many people) feel/s is right.
This makes some people uncomfortable, but it is why laws, values, language, manners, culture etc. differ from country to country, and why all of those things change over time.