It just comes across to me that you are envious of them for God to single them out and be given special treatment.
But God has a very long history with this people (Hebrews -> Israelites -> Jews) - longer than with any other ethnic group and wants to work it out.
I actually find that comforting! If the Lord is like that with them, then He is like that with us on an individual basis.
There was a period in my life where I had a serious crisis of faith and foolishly rebelled against God. That resulted in me being cast out into the desert for quite a good number of years - but He promised that He would have His hand over me - meaning I'd never be abandoned - disciplined to be sure, but never abandoned.
What kept me from completely giving up hope was His specific promise to me - but also watching how the Lord deals with the Jews. If He hasn't given up on them, then I know He won't give up on me.
And it finally came to pass that God took me back and healed our fellowship. So if He did that for me, I know He will do that for the Jews too.
So I'm very happy to see that the Lord will present His 144,000 Jews to the world and even to us gentile Christians! It's telling me that despite rebellion among the Jews from within, and the murderous hate of those outside that want to wipe Jews off the face of the earth, God was able to always keep a remnant who loves Him and truly follows Him!
I think that's the point of the 144,000. So please don't be envious. Please don't try to take over their positions as if you're one of the 144,000 -
God won't acknowledge you as one of them or let you take their place.
Just be happy for Him and for them!