Gerrymandering is not fair, unless you consider fair to mean 'fair game' in the sense that it is not illegal everywhere.
It is unfair.
unfair
The killing of animals can be fair or unfair. If the killing is for food or for protection it is fair.
It is fair
unfair
There is no other better way to learn about gerrymandering is to join the political parties and become a campaigner. It is a means to try an obtain a political advantage by unfair measures.
Unfair
Fair, just, honest, unprejudiced...The opposite of unfair is fair.
The word 'unfair' is an adjective meaning 'not fair.' Examples: We thought that the principal's new rule was unfair. The company was accused of unfair labor practices.
The only people who consider the practice unfair is the political party that is adversely affected by gerrymandering. If the governor and the state legislature is in the control of either the Republican or Democrat party, then the minority is going to suffer politically since the party in power has the legal right to redraw the congressional districts to their advantage.
unfair