Regarding specifically Spanish Jews, the Holy Inquisition concerned itself only with the dishonest Conversos, that is, precisely, Jewish converts to Christianity that secretly maintained their Jewish faith.
Well, you are going to have to answer to historical reports from the Jewish side of the fence that these "Conversos" (known in the Jewish world as "Marranos") were conversions of coercion fueled by anti-semitism. And now that they pleased their Catholic neighbors by acting Catholic, they get whipsawed from the other direction. It scarcely needs to be said that Jesus Christ never won a single soul that way.
oh, you too
Conversion of coercion is not a good thing and was never encouraged by the Church, at least not doctrinally. I am sure abuse happened and I realize that many Jews never converted in their hearts, and that presented a problem for everyone around.
My advice to everyone contemplating conversion to Catholicism, do not do it for extraneous reasons, even under great duress as it won't help your soul.
It is also true that the Catholic Church would make an exception during WWII and accept converts without asking questions, if that helped save lives. But this was done when emigration was not an option. I don't know if the similar consideration was made during the Reconquest of Spain, and what the position of the Holy Inquisition was when a conversion was confessed to be one of duress.
I've heard the "inquisition wasn't so bad" line a number of times. "Dishonest" converts (Protestant too, not all Jewish), they got what they deserved. Who can blame the Spanish for that?