I read that unity in Israel is one of the most important tasks that we as a nation should strive for in order to bring redemption.
The article that I read was in regards to Shemot 26:11.
There are many more places in the Torah that allude to this principle.

My point is as follows: I think that the religious people that claim to know that most of the Jewish people will die in the next war and only those that ate Kosher food and kept the Shabat will remain alive actually postpone redemption because they creating divisions and allianation within the Jewish people.

No one knows how redemption will be realized.

We should remember that most secular Jews are unable to reconnect with their Jewish heritage because of deeply rooted misconceptions. We should strive towards bringing them closer to Judaism, even if it is just a little closer and we should avoid making statements that would make them hate the Jewish heritage.