@failedLyndonLaRouchite
The idea that Gothic architecture was derived from what he called 'Saracen' architecture was first mooted by Christopher Wren. However, it probably makes more sense to see it as a development of the Romanesque style; the key difference in early Gothic being the introduction of the pointed arch. In any case, the earliest Gothic buildings pre-date the Crusades. It is possible, however, that Moorisah influence, from Spain, played a part.