Wide Angle Section

i noticed a macro section, how bout a wide angle section devoted to wide angle photography?

Why?

"Macro" is a term defined by at what magnification you're shooting.
Macro photography = close-up photography: Traditionally, anything above about 1:1 (subject size in real life = subject size on the sensor) is macro.
So subjects are mostly subjects of 35mm and smaller.

Therefore, "Macro" is a subject based category, like "people", "nature" or "sports". Whereas "wide angle" is lens based: Anything wider then, say, 35mm FoV.

Of the lenses in your sig, only two could be used for "wide angle" shots, one only for a small part of the zoom range. You could shoot "nature" with all of them. You also could do "macro" using a bunch of lenses (including all of the lenses in your sig )

Theoretically, you could use a 20mm, a 1200mm, or anything in between. As long as it can focus close enough (use extension rings). Working distance will be different, but it can be done.
That's why Canon has a 50mm macro (not "true" macro, since it only goes to 1:2), a 100mm macro, a 180mm macro and a specialized macro lens: MP-E-65 macro