I rather see it in the following terms: some profits are up for grab, who's best positioned to take them? I don't live in the US so I might have an inaccurate

I rather see it in the following terms: some profits are up for grab, who's best positioned to take them? I don't live in the US so I might have an inaccurate perception of everyone's leverage. However, truckers seem rather disorganised, compared to superstore chains. If big stores eat up 30% of the savings, and offer the remaining 70% to their customers as lower prices (minus a couple % spent in lobbying of course), I would guess they'd had their way. Ditto for Amazon, Alibaba etc. Look at Chinese importations: politicians sometimes make big protectionist talks to their constituents, but take no measure effective enough to annoy lobbies. And I think importations represent more jobs than transport.