That applies to some American male subcultures, but not all.
While I grew up heavily steeped in one such subculture, there are many other American male subcultures where there’s little/no hesitation for hetero males to showing love for each other…including hugs.
Some dominant male subcultures have even less compunction over this…such as the custom of males hugging and kissing each other on the cheeks in some European societies.
And in some some subcultures which frown even more greatly on public displays of affection, there’s also a corresponding greater disdain for those who drink heavily/enjoy drinking even in moderate…such as some American fundamentalist evangelical sects such as the one a branch of my family belongs to or the old upper/upper-middle class norms in some Chinese subcultures that my parents/grandparents generations were raised in.