We have gone over this before. If I recall Jesus said, "My kingdom is not of this age." Until then animals can be slaughtered and eaten.
You're either intentionally or unintentionally butchering that verse.
First of all, if you're talking about John 18:36, what Jesus actually said was "My kingdom is not of this world" - which obviously is true, but here's where you're getting things all wrong...
Just because Jesus' Kingdom has not yet come (in a physical, literal way) to this earth doesn't mean that we're supposed to throw our hands up in the air and say "It's not time yet for God's Kingdom so I'm going to do whatever the hell I want!"
No. Jesus teaches the exact opposite of that!
Here's an important and pertinent scripture that completely contradicts your world-focused perspective. The bold and underline is mine, because you keep missing it.
Jesus taught us to pray for the following:
"Your kingdom come, your will be done, on earth as it is in heaven."
- Matthew 6:10
That verse teaches us to have an eternal (as opposed to worldly) perspective. And it means He wants us to manifest God's Kingdom in our lives and in this world. Not put it off til later while living just like this fallen world lives. Did you forget the parable of the Ten Virgins? It clearly teaches being READY for God's Kingdom, as opposed to being unprepared like the foolish virgins in that parable.
2Peter 2
But these, as natural brute beasts, (which are) made to be taken and destroyed (slaughtered and eaten), speak evil of the things that they understand not; and shall utterly perish in their own corruption;
I'm not going to go through all your misused, handpicked verses that have nothing to do with the point.
The point of my previous post - that you completely missed - stands. It is not God's perfect will. And it's unnecessary. If it WAS necessary, then you would have a point. But it's not.
And since it's off topic, I'm not going to go round in circles with you again, since as I just mentioned, we have been over this many times before. But I had to reply to your misuse of John 18:36 and your complete opposition to what Jesus taught us in the Lord's prayer - to want God's will to be done and Kingdom to come
on earth as it is in Heaven.