Jahiliyya,
You'll probably have better luck with such a question over on the Political Science board; I imagine folks that frequent that board would be much better informed about the argument than those of us in (or aspiring to be) the History field.
That being said, I had a similar struggle as I neared the end of undergrad. As a History/IR dual-major, I had always been most comfortable in History and almost solely utilized qualitative methods in my IR work. Yet I always fretted about the "usefulness" and "marketability" of History as a specialty, so I forced myself to gravitate toward IR, pursuing honors in that discipline and eventually going on to a Masters in the UK (which, luckily for me, was much more forgiving of my qualitative proclivity than a US polisci department would have been). I contemplated going straight on to a PhD program in PoliSci, but decided to try my hand in the policy world before, which I am very glad I did. Several years of working in the national security/foreign policy field in DC and abroad (including a civilian deployment to Afghanistan) sharpened my desire to return to academic study, but also confirmed for me what I had been struggling against since undergrad. Academically, in terms of both subject matter and methodology, I am much more comfortable in History than PoliSci; now, having embraced that, I'm looking forward to entering a PhD program in History (assuming acceptance, of course!) and dedicating myself to its study.
All of that was the long way of saying perhaps your best bet is to delay applying for and entering graduate school for a few years. Maintain good relationships with your potential recommenders and keep up with the literature in your field, but go work in the field that you think you'd like to. You may find that you dislike it, or that you'd prefer academia; alternatively, you may find that you love it, and you don't need to spend 5 years in a PhD program to get ahead in the field. If there's anything I learned about the security/foreign policy field is that there is no single way to succeed in it. One person may have used a PhD to launch their career, while another leveraged their personal relationships to springboard into their dream position. Alternatively, you could pursue a Masters or PhD in a less-academic but related field such as Public Policy or Public Affairs, both of which average roughly 3-4 years to PhD completion. They require significant quantitative skill and study (most require multivariable calc completed as of application), and while original research for the dissertation is necessary, they are geared toward policymakers rather than academics, thus the shorter timeframe.
My advice: take some time. Graduate school will still be there.