What are you even talking about? There is an overrepresentation of males in Blockchain Technology because there is an overrepresentation of males in technology. While it is great to encourage women to get into technology, this is not something that can be changed by sentiment. There are several careers where women are overrepresented and excel at, there would be no point in saying we need to get more men in those fields. https://www.monster.com/career-advice/article/professions-women

There are also several high paying fields where women dominate: http://www.businessinsider.com/highest-paying-jobs-for-women-2016-10#3-vice-president-of-marketing-18

Men and women are biologically wired differently. This differences should be celebrated, not seen as something that needs to be fixed so we can have equal representation in all fields. Even in nature, there different gender roles in many species. Just as an example, lions are known as the king of the beasts, yet female lions in a pride do most or sometimes all of the hunting. This does not make them superior or inferior to male lions. They just have a different role. The male lions protect the territory from intruders and secure the pride.  This does not make one gender inferior or superior to the other, just different.