So, your working theory is that all of the people who work for the USFS, who went to college for forestry because they love nature and being in the forests and want to keep them forever because they are the best thing ever in their minds are just going to suddenly decide that sustainable management isn't really all that important and who cares if we lose our national forests that they have spent their whole lives trying to build?
Did you actually read the executive order? Because they would all have to be complicit for your doomsday scenario to play out.
As stated earlier, the choke point is our sawmill capacity. if we are running at full capacity, soliciting more bids for a supply of a natural resource without and increased demand for it will likely only lead to a slight increase in USFS land timber harvesting combined with a general decrease in the price of timber for private growers. Great for the sawmills, not good for private landowners growing timber. But the sky isn't actually falling. It's a stupid EO, but it isn't likely to lead to the doomsday scenario that it has been touted as.