You'd think compulsory voting in and of itself would be a smarter early policy to aim for if you want a US political shit show. Then you make elections a workday. Then you make it so you fall off he roll every year or so. Finally you make it difficult to get onto the roll itself.

Even in the USA, if you divide the population into categories, the 'did not vote' cohort would win every election.

We are not anywhere near as religious a nation as the USA. Abortion just isn't really a topic here, because the 10% who'd be against it wouldn't stand a chance of passing such a change. I think getting rid of compulsory voting would be a more popular policy to start with.