This is another one of those topics I want to say away from. However, P.Y. your comments disturb me tremendously.
>>During this time, if they knew our modern sciences they would have been MECHUYAV to build modern weapons and defend Eretz Yisroel. I claim that lchol hadayos, even Neturei Karta would agree that back then even on Shabbos one was obligated to defend even a single far flung border town. Certainly to defend Yerushalayim, and even more so to protect the lives of the Yidden because of PIKUACH NEFESH MAMASH. There is no heter in the world for them not to have saved us from defeat. (Ein osin ir hanidachas basefer, we don’t make a border town an ir hanidachas even if they all worshipped Avodah Zara, since it will lead to infiltration.) Churban Beis Hamikdash was the quintessential milchemes mitzvah and they would have been mechuyav to save klal yisroel via their advanced weapons. If that is not a milchemes mitzvah, I don’t know what is. Even one cannon could probably have saved us.<<
Do we not say in davening ?????? ??????? ???????? ??????????. ??????????? ??????? ?’ ??-??????? ?????????? Did the neviim (e.g. Yermiya) not preach teshuva? Do you not believe that the Beis HaMikdash fell because of divine decree? They had no interest in these weapons since they knew success (no matter what weapon you are holding) was SOLELY attributed to HaKadosh Baruch HU. On Chanukah our enemy had the stronger weapons, did that mean they were victorious?
Sorry, this is not an irrefutable rayah. It only shows that you have an amazing imagination, zero belief that our actions have consequences and little belief that G-d does things for a reason.