"I DO NOT CONSENT" - on ballot validly issued - is YOUR VOTE.

Ashby vs White 1703 is valid, constitutional ENGLISH LAW. By law the returning officer MUST make a declaration of all cast ballots. It is called a return. This is a declaration in law to the King on the people decision. It is a declaration to the Crown in parliament and both houses. Commons, Lords and spiritual and temple.

Not voting in law is known as "abstention" it is not "returned" and declared as it is regarded as you have no interest either way.

Your disagreement is not recorded. Your abstention is regarded as agreement, tacit agreement.

https://englishconstitutionparty.com/2023/05/22/spoilt-ballot-vs-abstention/