Asexuality is bullshit and anti-science. We are biologically driven to procreate and spread our genes. It's biology 101. Every ancestor you have either had kids or died alone and their direct genetic lineage died with them. It's an intrinsic human trait to pass your genes on. The closest thing to an "actual" asexual I've ever read about is
Temple Grandin a very accomplished animal science scholar who is so driven by her fixation on the subject she has no interest in relationships like that. Problem is she is also very autistic and extremely focused on her
life's work which would explain the lack of interest in relationships not magically being the single human with zero drive to procreate.