You have know understanding of God and his covenants. And you have know idea about Bible prophesy. And I'm not talking whether there is a rapture or not.
If you don't value the covenant that God made with the Jews, that must mean you have no value for Gods covenant with Christians. God made covenants with both. Which means that no matter what Christians or Jews do, God will not break his covenants with us.
To believe that God no longer honors HIS covenant with the Jews, but honors his covenant with Christians is the height of not only arrogance but hypocrisy. Either you haven't studied the Bible for yourself, and choose to follow biased teachings of others, or you are choosing to believe something because you choose it to be so. Either way its wrong and to continue with is heresy.
You need to do a in depth study of Gods covenants and what they entail.
When a person begins to understand covenants by God it is truely humbling, and awe inspiring into Gods character. It also gives Christians a greater view of their place under Christ.
I'm not saying you are wrong. I dont know. However, there was another covenant with God prior to the one with the Jews and that was with Adam. Adam and Eve broke that by eating the apple and were expelled from the Garden. One could take that the covenant with the Christians is much more difficult to break because its based on belief in Christ and accepting his gift of salvation rather than on specific works as with Adam and the Jews.