Within the context of land management and the BLM, "wilderness" is a technical designation.

Here is a map[1] for land designated wilderness.

[1]: https://gbp-blm-egis.hub.arcgis.com/datasets/BLM-EGIS::blm-n...

Alternatively: As of 2016, roughly 36.21% (about one-third of the U.S.) is forested.[0]

A reasonable person will come to my conclusion if they do as I suggest in my comment.

[0]https://en.wikipedia.org/wiki/Forests_of_the_United_States

Forested is not wilderness. Most forests have lots of roads, power lines running through them, etc. You're just trying to redefine a defined term.

Prior to 1946 there was no wilderness as the BLM didn't exist to define it as such.

Or they don't own the definition.

Congress owns the definition via the Wilderness Act, which are tracts of land with no human presence or impact.

Perhaps that will give you context in this discussion.