Dred Scott was a majority opinion, too. Majorities can be wrong, as they are in this case. The CRA clearly defined voting to mean casting an effective ballot, which refutes several of your other claims as well, so the intent is clear. A wrong or missing date doesn’t affect a voter’s qualifications to vote, so it obviously can’t logically be used to deprive them of their actual vote.
Spoilt vote
In voting, a ballot is considered spoilt, spoiled, void, null, informal, invalid or stray if a law declares or an election authority determines that it is invalid and thus not included in the vote count. This may occur accidentally or deliberately. The total number of spoilt votes in a United States election has been called the residual vote. In Australia, such votes are generally referred to as informal votes, and in Canada they are referred to as rejected votes. In some jurisdictions spoilt vo...