Nothing, I'd never wish for existence, I just don't see existence as something desirable, I don't see existence as something worth having in the first place, I'd personally always prefer to painlessly cease existing than be burdened with this futile, cruel existence that I never would have chose, for me ceasing to exist is something positive as it's the permanent end to all suffering, I have no interest in existence rather I just wish for the peace of eternal, dreamless sleep instead, I'd never wish to be conscious of anything at all. And what I ultimately have a problem with is existence itself, I find it terrifying how a human can exist for so long, I'd never wish for the burden of existence, I wish this existence was never imposed, I wish I could erase my existence so it's like I never existed at all.