I'm trying to figure out why it seems that frum people are in support of the change and nonfrum aren't.
I don't know about all frum people but the haredi parties need the reform passed, specifically the part about the knesset can override supreme court cancelling laws, so they can repass the law that allows them not to do army service. Otherwise the court will once again over rule it.
The country is reaching a boiling point, but I wish people weren't using their army reserve duty as leverage. But hey it turns out that if 20% of the population does 80% of the work (per pareto's law), and some large amount of that 20% says they've had enough, then you have to listen to them.
This is an extraordinarily complex topic.
Israel does not have a constitution, it does not have 3 separate branches of government, and it doesn't have the british culture or history of it's not done.