It's a very hard subject. On one side, Haredim who spend most of their life studying do not belong with people who desecrate Shabbat or or having to spend most of the time in the same unit as some of the "slutty Israeli female soldiers" as a friend of mine kindly put it. (Not all female Israeli soliders are like that of course, but from the experience of others, some of the female soldiers can be really out there).
So not all women in the Israeli Army like that. And there are some very religious men in the IDF. But not all are, and some soldiers just could not care less about Judaism at all. Why do we want to take some fresh faced Bochurim and mix them up with that sort of people. This is not the Army of a righteous ruler like King David. This is the army of a government that shuns the Torah and wishes to give away land to appease the arabs and the nations.
Fortunately the IDF does have Haredi units. So that is a good option. But just one thing to note, religious men WILL study Torah regardless of whether they have a job or not. So these religious men will need to study daily. The IDF will need to provide it daily, several hours a day regardless of being soldiers or not.
Anyways, I am far from seeing Haredi men from lazy bums. I am sure there are those who are not sincere in what they do. But many of them are devout, observant and love Hashem. To me, those who study out of love for Hashem are already soldiers to me. They are fighting the spiritual war by being observant. Israel is just so leftist, so hateful of the Torah sometimes. Letting all things anti-Torah run rampant. What is Israel without the religious? All the leftist would love to get rid of the Haredim...and they would allow people like Peace Now, LGTB, Feminist females of the wall and all those type "Jews" take over. They would allow intermarriage, then Israel would barely be a Jewish country anymore.
Well overall, I think Israel is blessed thanks to the observance of those who are frum. Other than that, I am not a political person, it's just my opinion.
I would not agree with forcing frum women to serve though, there is National Service as an option for them. Don't take girls who study and force them into pants of the IDF combat uniforms, please. they don't belong in basic training. That would be where I would draw the line.
As for forcing Haredi men serve, I don't think it will happen. They would rather go to prison and study there than give up their black and whites for greens.