Terrorist attacks in Brussels

Israel's Hafrada does not apply to the million or so Arab Israeli citizens living inside the borders of 1948 Israel.
It also does not say "leave, leaving all your belongings behind,

http://www.sephardicstudies.org/decree.html neither did the decree.

or be summarily executed."

I'll let you have that one. That's pretty fucked up and I can't even find much of anything willing to address that.

All it does is keep people who have publicly vowed to destroy Israel, outside of it.
The Jews in Spain made no such threats against Spain.

Their defamation of the sacraments and of Catholic devotions, and of the rabbis who did openly vow to try their hardest to "de-convert" legitimate converts was tantamount to destroying Spain, in the eyes of the government.

It is interesting to note that during this period, the Islamic rulers and people were much more hospitable to Jews than the Christians were. If you read the article you'll see that the Jews in the Iberian peninsula thrived under Islamic rule, before the reconquest by the Christians, and also fled to and were welcomed in the Ottoman empire after the Alhambra decree. So, not all the world was as not-atrocious-for-its-time as you paint the Inquisition to be.

Indeed, their friendly status with the moors was so great, it was perceived as dangerously subversive and a threat to Europe.