One additional thought: it may be appropriate then to have an option for a ‘present’ vote or the like to allow those who wish to protest their options on the ballot still be counted. I suppose that’s a write-in ballot, however?

Also, it seems to disadvantage populations that have disproportionate bias towards non-voting. I’m thinking areas of lower socioeconomic status, even with as many pro-voting initiatives as can be, will still ultimately be undercounted.