Yes but Galadriel was not documented as one of them. And takinig down a troll is not the same as taking down Morgoth.
The problem is all of those Elves should have been able to fight that troll and take it down with or without Galadriel.
Otherwise, why have them on a search for Sauron if they cant even take out a Troll?
The bigger issue is in terms of fleshing out the story of how Elves are trained to fight and what their weapons and tactics are.
It is something they could have at least touched on in this series as all Elves are trained in the lore from a young age in athletics.
I would assume this would include some form of combat and use of weapons. Some level of combat skill and ability should be common.
Her being like an Amazonian in her youth doesn't meant that all the men are weak and inept. Compare to the Hobbit and the female and male elves.
Also, another problem I have seen so far is they must not have been big on hiring extras or using CGI to extend crowds like WETA.
Because large groups of people are notably missing from this show. Like if she is leader of the Northern Armies, then where are they? 10 men certainly isn't an army.