Which motion would you make to kill a Main Motion by majority vote?

To kill a Main Motion by majority vote, the appropriate action is to postpone it indefinitely. When you propose to postpone a motion indefinitely, you essentially suggest that it should not be considered any further. If this motion passes, it effectively kills the original Main Motion without bringing it to a vote.

This tactic is often employed when members may not support the motion but do not want to vote it down outright. By postponing indefinitely, it allows the group to move on without the obligation to discuss or vote on the original motion again in the future unless it is reintroduced.

In contrast, simply withdrawing the motion is an option that is initiated by the person who made the motion and does not require a vote. Voting down a motion merely means it has been rejected, but the motion still goes through the voting process first. Tabling a motion refers to putting it aside for later discussion, which does not kill it but postpones its consideration. Therefore, postponing indefinitely is the most effective method to completely eliminate the motion from consideration.