Defining astrology or any thing anyone believes in is not for anyone to define. All people have their own beliefs built over a lifetime. Look at cultures all over the world. all cultures are built on the conditions of lifestyle. Chinese and american cultures are not the same. There are cultures in food, clothing, and shelter. I can't speak russian or any other language but english. It doesn't make me wrong or right, just different.
It all depends on where people are born that determines their lifestyle. That is why there are so many religions in the world. It does't mean they are all right or wrong. They just fit into the culture you were born into. That is where the arguments start. There is only one truth in the world. That is the bible. Since all people know good and evil the truth gets muddled.It seems our truth is whatever we determine it to be. God's truth is absolute.There is no error. Someone once said we can't handle the truth. That's what causes wars and hatred. Someone else said live and let live. These are all excuses for our ignorance.
We don't want to or we can't understand the truth.God wanted us to know good and evil to see how we would handle it. Then satan stuck his nose in. He wanted to be the interpretor of the truth. That's how we got into this mess. In mankind there are so many truths people believe. And yet they can't see the truth for all the half truths.