CGP Gray has a good explanation how FPTP works and how it breaks down and ends up typically collapsing down into a 2 party system or is wildly unrepresentative in multi party systems.
Basically fptp is a winner take all system, whoever gets the most votes wins and beats everyone else in the race. It doesn’t matter if you won by 1 vote or by 1 million votes the result is the same, you won. So if one party can maintain just a slim plurality across numerous districts, they win those districts despite not getting the majority of votes and everyone else’s votes essentially do not count in the greater whole.
CGP Gray has a good explanation how FPTP works and how it breaks down and ends up typically collapsing down into a 2 party system or is wildly unrepresentative in multi party systems.
https://youtu.be/s7tWHJfhiyo
Basically fptp is a winner take all system, whoever gets the most votes wins and beats everyone else in the race. It doesn’t matter if you won by 1 vote or by 1 million votes the result is the same, you won. So if one party can maintain just a slim plurality across numerous districts, they win those districts despite not getting the majority of votes and everyone else’s votes essentially do not count in the greater whole.