An opinion which matches fact is correct.
Saying this in response to my argumentation means that you assert that science can say what is good, loving and beautiful.
We can see lots of political regimes communist and nazi, stating as fact what is good and evil. We can see that this mixing fact with opinion is a real problem in society.
You have previously stated what is good, loving and beautiful is not a matter of science. But here you begin with saying an opinion is correct when it matches facts.
It means that the materialistic logic you use pushes you in the direction of arguing that what is good, loving and beatiful is a matter of fact. It is simply logical that from the point of view of materialism, photosynthesis is a matter of fact, dust on my table is a matter of fact, the knack in the plant is a matter of fact, every little thing.......everything is a matter of fact, including what is good, loving and beautiful. That is the direction of argument materialism logically pushes towards.
You argue towards it what is good and evil being a fact. But then completely separate from your materialism you have a value which says that it is wrong to make what is good, loving and beautiful into a matter of fact, so then you correct yourself.
But in practical reality this still means that your values are hollowed out by materialism. And it is shown in history that this is a real problem. How come you would be better at distinguising facts from opinion than tens of millions of nazi Germans, and communist Sovjets? Why should anybody trust you about that?