This simple system awards a seat (in Parliament) to the candidate with the most votes. This sounds like a fair process until you realize that a minority candidate can win on a fraction of the vote when the majority wants someone else.
Collectively, a 39% minority party can get over 50% of the seats and 100% of the power: a false majority.
This means voters can get saddled with politicians and governments they don't want and didn't vote for.
Vote splitting produces arbitrary election results because parties divide the electorate arbitrarily.
Time to upgrade
Voting reform stops the insanity and ensures government represents an actual majority of voters.
There are two approaches to reform:
Prefential Voting (ranked ballot): This fixes our existing system by simply changing the ballot from single-choice to ranked. Voters rank candidates by preference. This makes MPs earn their seats with a majority.
Proportional Representation: This distributes federal votes so parties get the same percent seats they got in votes. Since people tend to vote for a party, leader and platform, it's a natural fit. This system is used in 85% of developed countries.