Worshiping Onan can not only be qualitatively different from having intercourse, there are also other factors involved that cause our brain to process masturbation from sex differently.
That would explain that, no matter how much we practice onanism, we always aspire to have sex with another person, and that onanism is a kind of consolation prize ("consolation" written with many quotation marks).
Excess masturbation
Masturbating does not leave us blind, nor is it immoral, it is even healthy. However, if we abuse masturbation in order to fill our lack of sexual partners, there is data that suggests that, over time, sexual well-being is spoiled , since it significantly reduces libido and the capacity for sexual arousal, as reflected in this study from 2016 that analyzes the consumption of internet porn.
The study focuses on the internet for the unique properties of pornography in this medium : unlimited novelty, potential for easier escalation to more extreme material, video format, etc.
The positive news is that, after a period of restraint, this sexual well-being and capacity for sexual arousal returns to normal. However, as Dean Burnett points out in his book ‘The Happy Brain’:
But the fact that such symptoms have not been observed among those who frequently have sex with other people indicates that when it comes to sex, our desires and our happiness are not based simply on achieving intense but fleeting pleasure.