I would describe it as a cacaphonic symphony that you eventually get used to. It packs as much information into one sense as you can get from your other four put together.
Much like how you can discern an individual instrument type in a symphony, sight lets you discern individual objects from afar, and gives you a mostly accurate summary of its basic properties.
Also much like with sound, it can be very appealing or unappealing, depending. There's an intrinsic beauty to the sense itself though. Every object has color, for instance, and color is more like smell. It can give you hints about what something is, but its mostly an arbitrary blend of different "flavors" that combine to create more complex examples.
It's the super-sense, the one sense that binds them all. When one of your other four detects something, your first instinct is to locate it with sight to determine more information before you do anything else. You "look at it" first. Almost without fail.
I'm discussing the specific choice of what rhetoric they decide to use, not why they are using it. Why they are using it is fairly obvious at this point.
There are many different lines, arguments, whatever that could be employed, though. By paying attention to which ones are specifically chosen, you can learn more about their target audience, which is larger than simply fans of a white, ultra-nationalist ethno-state. Hence their need to continue to use rationalizations like this, instead of being forthright about their intentions.
This one in particular surprised me, as I didn't foresee it. They're usually more predictable than that.