Though I agree there is no doubt that these girls are not pushing the envelope to go and fight Cyborg, the UFC can't really 'push' that issue itself. Moving up a weight class to fight bigger competition is not under the jurisdiction of the UFC match makers. If any of these girls wanted to fight Cyborg they would have to make that there own decision. Despite them all likely being in range of that weight, and it probably rather easy to attain in a short amount of time for the likes of Holm and Rousey, fact is they don't 'have' to , so they wont. Moving up to fight the bigger person doesnt always give you the accolades you had hoped for. Sadly for Cyborg, if Ronda and Holm moved up to fight her, and got pure busted, ppl wouldn't give her much credence...that's what was supposed to happen...
I totally agree that Cyborg is one of the greats of this age, and wish we could see her fight more often at a level of competition that could shock me. But she's just born at the wrong time, and is stuck in between weight divisions...forcing smaller girls to go up and fight her wont make her a super star. Dont get me wrong, beating Rousey would give her huge popularity, but it would be fleeting due to the circumstances...and because every girl would have to step UP to fight her...it's not her fault, shes a big strong girl, its just shitty there is no division tailor made for her.