Introduce compulsory voting, 50% winning threshold and non-of-the-above option

Background

I want the government to change the system at all general elections from now on.

Additional details

I think: 1.) There should be compulsory voting. 2.) A candidate must get at least 50% of vote share to win their seat. If a candidate gets fewer than 50% of the vote share, I think there should be revote between the top two candidates. 3.) "None of the above" should be added to ballots papers and if more than 25% of people in a constituency choice this option, new candidates must be chosen for that area.

Where it’s popular

Constituencies with the most signatures on this petition.