Depends on which one we are talking about. They(female soldiers) were not that common in ME1 and ME2
Think he means ME. Practically half the soldiers you see in ME 3 are female. And tbh that kinda makes sense with the reaper threat. You have to sacrifice quality then so you have the quantity to fight the Reapers.
I agree for ME3. But ME3 has a completely different setting, which is the - draft everything that moves, humanity is in existential danger.
Or it could be lot lighter, since materials and techniques used probably are going for effiency, heavy doesn't really mean better. I doubt in ME the standards are so high in terms of being able to carry weight that most of women can't join up, ME has lot of biotics in the army as well that wear light armor and then there is different brances and requirements for them, for example I doubt that Joker had to pass carry your own weight hundred kilometres test ^^;
Joker is not a soldier, he is a pilot. And honestly he is stuck in that position. I dont see him getting promoted to admiralship and also due to his weakness, caused the death of shephard
Biotics are there, but I dont think we met any high ranking biotics in human army. Jack is still a soldier/teacher