baby boomers are actually a group of people who came back from ww2, where years after (not before economic hardships as mentioned above) the economy skyrocketed upward, there was an influx in commodity products with a man and woman labor force now and a huge demand for things for people returning to normal life. Because of massive boom in the economy, the number of men and women ready to settle down with families, unprecedented growth of the middle class and the low cost of housing, people started building families all at the same time, hence the baby boom.
and soyboy was just a poking fun statement for pretentious yuppy college dudes who stated anything traditionally masculine in presentation was toxic..because you know, they have life figured out while also being scrawny effeminate people who couldn't fit the mold they condemned so much. It took off to really mean any guy aligned themselves with a new feminist ideology that men are inherently toxic and need social re-construction when they actually got mad about it.
You can be scrawny and effeminate (like me) , drink all the soy you want and not be a soy boy. It's really the superiority / inferiority complex that comes with them talking down to 95% of the male population trying to show how non-conforming they are. Its like the worst mashup of an emo and a vegan. Its also interesting to note a seeming alarm amount of them are under achievers, violent, sexual predators, and flip on a dime once the whole "thanks for being an ally, but we are not equal, now get to the back of the bus" mentality feminist have kicks in. AKA, they're hypocrites of the worst kind.