You are treating Gnosticism as a straw man. First you make up your own definition to identify it, then you tear it down.
This is a very common fallacy in logical arguments.
I am not gnostic, but I have studied it. Translated, the term means “knowledge or knowing”
If you understood it better, you would understand Jesus’s teachings better. It is evident that you don’t want to “Know” what Jesus taught, but to preach what you think and feel about Jesus’s teachings.
The Bible teaches that Jesus shared knowledge with His disciples that he told them not to share with other people as they would devour them. You are one of those people Jesus warned His disciples about.