Heterosexualisation of men is only possible by forcing them to lead unnatural lives.

It is natural for polar bears to hibernate during the winters. You may want them to get out of this natural trait and you may force their envionment to change and never let them go through winters. 

However, the instinct in the polar bears to hibernate will still remain, so you may then force them to stay awake during the time they are programmed to go into hibernation. You may be able to change their behaviour by keeping the pressure on them throughout their life ... but it is all unnatural, and bears will never be able to live life to their full.

The same happens when men are forced to be heterosexualised through various psycho-sexual mechanisms, which are taken to the extreme by the western heterosexual societies.