1. From the video it is very evident that you are not autistic at all, not even the slightest (most old virgins are on the spectrum)
2. You had high education and stable, good-paying job
3. You lived in a major city, so that also excludes the cases/cels who live in places where there is a serious lack of women to date
4. You look an old man (more than your stated 53 in the video), an old man who really looks normal, no clear problems with the face, you are tall... I don't know how you looked when younger, can you share photos of you when younger? Because based on that video, I can safely say that your looks was not the problem. You aren't ugly. (You should see my face)
If you really still are a virgin and don't lie, that is a rare occurrence. Usually those cases are autistic, severely ill/disabled/mentally retarded, very ugly or/and permanently non-performing in the labour market/poor, or/and have permanent conditions like some muscle illnesses, life-long bowel syndromes...you aren't any of those. And you don't live in a remote village with no women, you live in LA! There is of course the possibility that you really don't have strong sexual urges and never did. Or/and you have some mental problems (to begin with, not resulting from the loneliness, but which caused the loneliness in the first place).