So am I correct in assuming that what your saying is that while humanity right now possesses the ability to destroy all human life on earth, we won't because Jesus will come kill all the "evil doers". After Jesus is done with that, a tree will appear and this tree will control human free will preventing us from being wicked to one another forever. Thus ushering in world peace.
If you are correct then wouldn't it be in the best interest of the world for the president to go ahead and fire off all the nukes (or attempt to, according to you) and force Jesus to usher in peace now?
In Scripture I find there is a difference between killing, murder and an 'execution' for the sake of justice.
The words (Not nukes) from Jesus' mouth will 'execute the wicked' for the sake of justice for the righteous.
We can Not read hearts but Jesus can, and will Not judge by the mere appearance to the eyes as per Isaiah 11:3-4.
Only the wicked will be destroyed according to Psalms 92:7.
If Jesus would Not involve himself into mankind's affairs then even the righteous will be in harm's way.
The figurative righteous ' sheep'-like people at the soon coming time of Matthew 25:31-33,37 are considered as righteous or upright ones because they have chosen to use their free-will choices to do good, and Not evil.
Whereas the figurative 'goat'-like people use their free-will choices for doing what is Not right.
Please remember the Genesis ' tree of life ' did Not control Adam nor Eve's choices.
They lost access to the tree of life only after they broke the Law of the Land.
By Revelation stating about the return of the tree of life for healing earth's nations is showing 'everlasting life' on Earth for those who choose to use their free-will options to obey the Law.
If you are alive on Earth during Jesus' 1,000-year reign over Earth, and you want to opt out of everlasting life on Earth all you have to do is purposely break the Law. Only those who choose to be humble meek people will inherit the Earth. By the 'end' of Jesus' millennium-long day of governing over Earth those alive at that time are the ones who want to live forever on Earth under God's kingdom governmental rule requirement of love.