Honestly, i still not understand you requirement here. Is it you wanted to use your own theme for your Easysocial? If yes, you can upload them here http://take.ms/Z7bzn and make them as default.
Maybe i have miss-understand you here, it would be best if you can provide us with more details, maybe with some attachment/images or steps for us further check on this issues.
Ok I try to explain better my idea. I should use the component just for personal users pages. So I'd like to create that personal page using page builder including easysocial modules. The rusult should be something like the image I added.
Honestly, i am not familiar with pagebuilder currently, and i am not sure if that achievable or not suing page builder. It would be best if you can consult them regarding this and see how it goes.