Let's see what the Bible says:
Did Adam and Eve die? Yes or No. So does God not know what death is or are you disagreeing with God?https://www.biblehub.com/genesis/2-17.htm
but of the tree of the knowledge of good and evil you shall not eat, for in the day that you eat of it you shall surely die.”
Non Christians are regarded as dead but they all seem to be walking around (They had better get grafted in).https://biblehub.com/ephesians/2-1.htm
And you were dead in the trespasses and sins
John 11 deserves special mention. Jesus says to Martha and corrects her when she thinks Lazarus will rise on the last day. Not so Martha Jesus says, I am the resurrection and the life. Whoever believes in me, though he die, yet shall he live, and everyone who lives and believes in me shall never die. Do you believe this?”https://biblehub.com/john/11-26.htm
and everyone who lives and believes in me shall never die. Do you believe this?”
Jesus says we shall never die and admonishes Mary for thinking Lazarus will only rise on the last day. So either Jesus is a liar or we shall never die.
You know just to continue a theme, where Jesus dies on the cross and the curtain is torn, that is in effect no more separation between man and God. Symbolically when we pass through the curtain of death, we will find that we are more alive than ever, with God forever.
I really think many are preaching death still has a hold on Christians, still has a sting to it.
It's a serious subject. I strongly think people are making Jesus out to be a liar who disagree, I say that to highlight the implications and encourage civility in such a charged topic

Is death ... the end?
What is death and what does it mean according to the Bible?