i think the fruit is important. what we eat defines us.
What they ate sure seemed to define Adam and Eve ( even Adam and Evil )
That one forbidden fruit tree I find stood for God's standards: God's standard for conduct or behavior.
Thankfully mankind will see the return of the Genesis ' tree of life ' for mankind according to Revelation 22:2 when we will see ' healing for earth's nations ' under Christ's 1,000-year governmental reign over Earth.
So, because of the return of the ' tree of life ' mankind can gain what Adam and Eve lost.
Mankind will be healed from human imperfection, and have the opportunity to gain everlasting life on Earth as originally offered to Adam before his downfall (before breaking God's standard).