No, when I do drive, I use the PA Turnpike a lot.
Our warehouses are now the interstate highways, and everything is now 'just in time' delivery. Rail has a lower percentage of total shipments every year, except for massive quantities (eg coal and grain).
Uh huh.
Which would obviously explain rails market share rising from 37% to 42% of ton-miles during the past 10 years. Right? Also explains the ever increasing number of carloads and the ever increasing car weights (standard is now 115 tons - 286,000 lbs gross weight), and ever increasing number of trailer and container lifts.
This would also explain the massive warehousing boom that can be seen in the outlying areas of any major city or distribution center, usually near a nexus of an intermodal rail yard and a crossing of two or more interstates. Capitalists must be wasting their excess money by building large empty buildings to house fresh air.
You sure do know your stuff. Yep. No more warehousing, and trucks carry everything but bulk coal and grain.
'Just in time' material control systems have pretty much sunk rail transit for anything other than large quantities and hazardous chemicals in large quantities.
At Burlington Northern Santa Fe, for example, their largest source of revenue (and growing at 10-25% per year) is intermodal freight - individual trailers and containers on flat cars and well cars. Your explanation above surely explains their explosive growth correctly.
Your explanation also explains why the railroads make important "just-in-time" deliveries every day of parts to auto manufacturers, for example. Obviously an illusion, right? For example, the Chrysler plant in Newark, DE, is fed by its very own auto-parts train every day for larger items directly to the plant, and 60-70 roadrailers (over the road trailers that can be attached to a railroad truck for movement as a train) brought in from the midwest and south and trucked down 70 miles from Harrisburg (for now - they haven't built a terminal in Delaware yet, but may soon).
Other big areas for rail that you missed in your fixation on bulk farm/resource products - scrap and finished paper, finished lumber, perishables/meats, beer and malt liquors, finished steel, raw steel slabs, auto-parts, finished autos/trucks, finished farm/construction equipment, imported Asian goods, UPS/Schneider/JB Hunt/US Mail/etc. trailers carrying anything and everything - on and on we could go.
Are you even aware that the majority of trucking is movements under 200 miles? This counts more as local delivery than haulage of freight. Unless it is moving directly from a port to consignee, or is a short distance shipment from factory to consignee, freight is usually hauled by rail, and delivered by truck if the consignee is beyond the railhead.
You know why? Very few people want to spend a week on the road away from home, so cross country trucking is expensive.
In any case, this isn't some kind of war. Both modes work together to serve the needs of the nation. If either one suddenly vanished due to a strike or fuel shortage, it would be a national economic catastrophe.