First of all, history is written by whoever decides to pick something up and write about it, and who is Paige to limit that person to only being a winner. A tad bit prejudiced, I must say.
Secondly, that is just a blatant and ignorant over-generalization. Indeed, there are many historical accounts of those who won wars and conflicts but there is plenty out there of those who lost. There are accounts of both Jewish persecution during WWII and Nazi writing. There are numerous accounts of Native American persecution in early settling days. There are records and accounts of those who fought for the Confederacy during the Civil War. The accounts of the persecuted Pilgrims who lost their homes. The persecuted early Christian church. The Irish persecuted by England. The list could go on and on and on! There is no possible way that Paige could make a legitimate argument, backed up with fact, to support her claim.
Furthermore, any history written by man is not going to be a hundred percent objective. Everyone has their own twist on things. If four people witnessed the same car crash, they would all describe what happened differently. That's how we can tell that they aren't lying! However, just because everybody has different views that they come to the "historical table" with does not mean that they aren't true! A Jewish woman who survived the Holocaust and writes about it is not going to be objective about, she's going to see the Nazi's as evil and wrong - and rightly so! They were evil in what they did! It's true! Thus, no matter how subjective an account may be, does not mean it can be automatically counted out for truth value. Everything must be read with discernment and judged with all the facts and viewpoints in mind.