Yes, severe sexual repression is severe. Especially in the UK, which I believe tends to have better attitudes on the whole about sexuality these young men stick out like a sore thumb.
On the other hand, in America, this sort of thinking fits right in amongst the multitudes of religious conservatives, if they ever talked to one another anyway.
It is not always about religion. Many "NoFap" community young men have notice many benefits of refraining from sex,porn,masturbation & ejaculation.
Some of the benefits are better health, better vision, better mental concentration and focus.
Ejaculation do lot of harm to your body, lot of nutrients and bodily fluids are ejaculated. according to some members of Nofap community.