In the end there’s only one co leader clarke can count on. And that is Bellamy Blake.
Ah, yes, Bellamy was so reliable last season, in his first season--like Lexa's is now, before he was accepted by The 100 and the Ark people. So reliable, saying things like "I'll cut off her hand if I have to" about forcing Clarke to join his cause of convincing the Ark they were dead, arranging an attack on Wells for the same thing, sacrificing 300 people and their fucking only means of communication at the time so that he could avoid any recompense for shooting Jaha, hanging someone from a fucking tree because they kissed his sister, etc.
So fucking reliable as a leader. Not at all out for himself and loyal only to those who would obey him, or who were down to help his survival, or whom he considered his own (like Octavia).
Oh wait, no, he wasn't. But you held on and let him grow, until he got to a situation that allows him to be reliable as a viable choice to survive.
Don't pretend one ruthless Slytherin survivalist badass is better than the other to prop up your ship, especially not if the ship you're trying to defeat is queer.
Give Lexa the same treatment as you gave Bellamy, hold on for her to grow and get into a situation where she can be reliable and viably survive, instead of being sexist and homophobic as fuck.