They are largely from the upper class. Their commitment to Judaism relies more on philosophy and intellect and less on emotion than the lower classes. They rationalize and hope that it will blow over soon, that their experience as Christians will be temporary. By staying they choose comfort. However, having abandoned Judaism, many live with anguish.
Demographers estimate that ninety-percent of the population has Jewish ancestors.
In these darkest of times, G-d's awareness of the suffering of his children does not seem to be obvious. Neither does His active management of our history appear to be obvious. It is difficult to see how events are leading to the completion of creation, when all of Mankind will voluntarily rise into harmony with the forces of nature and only perform the will of G-d. No doubt some vessels in the Spanish harbor may have crossed paths with that of a Royal expedition, lead by a person named Christopher Columbus and sponsored by the monsters who threw the Jews out. The New World which he discovers eventually becomes a great haven for refuges and a champion for tolerance.