Geni.com is a data broker that provides genealogy services, owned by MyHeritage. To remove yourself from Geni, you must contact them directly over email. After this, it is unclear how long it will take for your information to be removed.
Speed: 5, Slowest
Difficulty: 5, Hardest
How to Remove Yourself from Geni
Generally, public profiles are only made for people who are (presumed) deceased and public figures. Here is a chart explaining their public and private profiles from their Privacy Policy.
If there is information posted on Geni that you feel is a violation of your privacy, you can request that it is removed by contacting them directly.