The crusades Greatly affected the feudal system and began to lose it hold on society which eventually led to the Renaissance. Knights had to sell their land to be able to live, due to the feudal system crashing. So if they were not able to make enough by selling their land, they were left broke. They were also forced to serve nobles in personal armies.
They could have had second thoughts and wanted to not be a Jew so then they wouldn’t be put as slaves or maybe they thought their Jewish god wasn’t helping them because the Jewish god doesn’t like them
