The best course of action would be for the Attorney General to simply refuse to approve it, indefinitely. That’s the only way to be 100% certain it will never happen.
If it’s on the ballot, they will vote to legalize abortion.
If it gets on the ballot, then the pro-life people need to post ads describing the grisly details of late term abortions. At least some of the voters will lose enthusiasm.
The blood of Christ is not their holy sacrament but the blood of aborted babies is their evil passion. They worship it like ghouls.
Constitutional Rights are God Given Rights. This fails that test in many ways and directly counters the Constitution in one obvious way.