Right/Wrong... subjective?

A common argument is that our morality, or what we call the understanding of "right and wrong" or "good and bad" is governed by the individual's standards instead of a universal truth or common understanding (look up Hundredth Monkey Effect)that we all tap into/realize, which is a product of humanity's spiritual evolution.

The latter is my argument. Right/Wrong is Universal truth.
I think everyone can testify that Love is right and Hate is wrong.
Even people who suffer tremendous emotional and physical pain, I think they are still aware of what is what is universally right and wrong for humanity but they ignore the good inside of them due to fear/confusion. I believe those who make right and wrong out to be subjective ideas are just rationalizing their selfish desires. In my perception, nobody believes that evil is right, but for some people it's just all they're familiar with so they glorify it.

Love is acceptance, understanding, union, peace, community, caring, support etc
Hate is intolerance, unsympathetic ignorance, tension, us against them mentality etc

So do you think this is a common general understanding of Love/Hate? or do you think my understanding is subjective and not universal?

What about positive/negative? I believe we all have a general understanding of what positive/negative energy is..

What is your stance?