People don't vote.

Two ways to look at it.

It is their fault.

It is the system's fault.

Politiicans prefer the former.
That should make you suspicious.

The people who get elected have a vested interest in the system.
As far as they are concerned the system works.
Why would they want to complicate things by coming up with successful strategies to get more people to vote?

When you decide that you don't care whether people vote, they win.