I think the most principled response from Chareidim is that they won’t serve in the IDF because they don’t support the Zionist state. Simply saying the army is bad for religious observance isn’t sufficient. The argument draft pushers will use is to join religious units or to try to change the IDF to be more religiously friendly. If the Zionist state is legit then there isn’t a strong argument against serving in the IDF. The IDF draft push is part of what pushed me to the Satmar view. The Status quo created by Agudah and others isn’t maintainable long term. Chareidim need to be of one voice that we oppose the Zionist state and we don’t want to be ruled by it.