No.
About the same time the Spanish were in Mexico my family was dealing with the french and, a bit later, the English. They, while no angels, did not act like the Spanish possibly because they were not corrupted by the mohammedan religion.
At its height, ‘El Andalus’ was probably the most advanced region in Europe - I’m talking about the era of Maimonides etc. You sound like you’re repeating the notorious Black Legend.