Yes, immigrants have to join if they came as kids- they are citizens. Immigrating at the age of recruitment (18+), whether they are required to join the IDF is extremely complicated and depends on a lot of factors. I’d say it probably ends up being almost individual case by case.
However, it’s often advantageous for young new immigrants (18+) to do so; they learn the language quicker, build a network of contacts, and learn a skill, and get paid.
how do parents feel? individual, and depends on the religious background they come from. I think this article reflects a lot of opinions I have heard, particularly this quote :
https://www.futureofjewish.com/p/when-israeli-soldiers-become-parents#:~:text=Israeli%20parents%20(like%20any%20other,enlist%20will%20cease%20to%20exist."Israeli parents (like any other parents) are fearful of and hesitant about sending their children to the army. Every generation of Israeli parents, who served in the IDF themselves, is eager that the “need” for their children to enlist will cease to exist."
For various reasons, some of my children are unlikely to be in combat units, two have automatic exemptions for ASD, although one says he wants to work on the iron dome because he wants to save lives. I don’t know whether the units that do that have enough possible adjustments to cope with his special needs though, so it just may not be suitable for him.
I’m pro the idea of national service in general, and would be proud of my child for serving, but as in all large organisations, there are issue and parts that give me great concern, and of course, if he joined a combat unit, I’d be very anxious. I’d love it if there was no more need for the army.