Paradox of voting
The paradox of voting, also called Downs paradox, is that for a rational, self-interestedvoter, the costs of voting will normally exceed the expected benefits. Because the chance of exercising the pivotal vote (i.e., in an otherwise tied election) is minuscule compared to any realistic estimate of the private individual benefits of the different possible outcomes, the expected benefits of voting are less than the costs.

https://en.wikipedia.org/wiki/Paradox_of_voting

https://en.wikipedia.org/wiki/Paradox_of_voting