Nothing is wrong with nihilism, It one view of many and its pretty reasonable. Nihilism is not depression, its not some incel ideology

Here is wiki definition
In philosophy, nihilism (/ˈnaɪ(h)ɪlɪzəm, ˈniː-/; from Latin nihil 'nothing') is any viewpoint, or a family of views, that rejects generally accepted or fundamental aspects of human existence,^\1])^\2]) namely knowledge, morality, or meaning.^\3])^\4]) There have been different nihilist positions, including that human values are baseless, that life is meaningless, that knowledge is impossible, or that some other highly regarded concepts are in fact meaningless or pointless