I think the fundamental error here is to think this is in any way a new phenomenon. This line, in particular, holds the key: > Others evolved over the centurie

I think the fundamental error here is to think this is in any way a new phenomenon. This line, in particular, holds the key: > Others evolved over the centuries: Islamic architecture encompasses both Moorish horseshoe arches and the turquoise domes of Uzbekistan, but the unified features such as minarets and geometric ornaments tell you these are lands conquered and converted by Muslim empires. (Emphasis mine) This architectural homogenisation has always happened to some extent except that, in the past, its sphere of influence was limited to the area of a certain empire, nation state, or religion. Nowadays the actors are powerful corporations with global reach, and hence the homogenisation is global in scope rather than more localised. There may be a solution to this but I don't think calling for a preservation of local architectural style and culture is it, because it's not dealing with the root cause of the problem. That may go back to valuing function over form and getting the most value for money out of buildings, although neither do I think this is a complete explanation.