[2stop]

Australia does it, you can use your driver's licence, your passport, or your birth certificate and a recent bill. Or Medicare card.

There is no cost to requiring ID... It is you conflating the cost of acquiring an id with the cost of requiring one. As Australia shows, it can be done with a zero cost (birth certificates and Medicare cards are free)

Australia acheives a 90+% voter turn out. (Compulsory voting through fines) even our poorest are able to vote, that remaining 8% who don't vote are overseas, or missing.

US is lucky if it gets to 60%

The US system has serious problems that completely undermine a democracy... But hey, let's forget the forest and focus on this one tree right here.