Well you are saying that Jesus words relate to the gentiles
Yes, I am.
If Jesus' words do not apply to Gentiles, then they are not profitable for doctrine, for reproof, for correction, or for instruction in righteousness; unless you are specifically talking to a Pharisaical Jew.
I don't believe that (see 2 Timothy 3:16).
You can reject the truth if you want; you have every right to do so in this country.
I'm not certain that it will bode well with you on your day of judgment.
In saying that the Deity of Christ is not an essential doctrine, you are giving leeway to people who do not want to believe in that doctrine. Whereas if they understand that it is an essential, they may be motivated to seek out an understanding of it in the word; and not to reject it. But if they do not see it as an essential, they may consider that it's not important; and will die in their sins because they did not believe in it nor seek to be able to do so.
Thus you will be responsible for their damnation.
What will you say to the Lord on your day of judgment when this is brought to bear on your life?
Where in the passage that includes John 8:24 does the scripture exclude Gentiles concerning the application of what the Lord said?