Commissions are 30-40% of an auto dealer's costs as a % of gross profit. If salespeople don't have to negotiate price, you can cut a lot of that cost and focus on higher margin (e.g., financing) and subscription products (e.g., parts & services) that deepen customer loyalty. The big groups will be better at making these investments (and the investments needed to sell/maintain EVs) and will continue to consolidate what remains a highly fragmented industry (i.e., the two largest dealer groups, AN and LAD were each only 1.75% of new car sales in 2021).
I wouldn't cry for nor count the dealers out just yet.
FAANG companies will primarily be differenated based on network or software, rarely commodity hardware. They don't need to go all the way to silicon if they can just tune the designs for their workloads. We're early on in that process, and I think the internt giants will progress up the stack into the metaverse, not down into the physical science of it.
Semiconductors are a capital intensive and brutal business, as evidenced by Intel's recent fall - they basically made one architectural mistake and that slip up cost them the lead on multi-threaded performance for probably 5-8 years, assuming they can get it back.
Separately, Rockefeller's coercion of the railroads was not something he did because he was big, it was something he did to become big. He would strong-arm his way into controlling or coercive positions at railroads, then cut off his competitor's ability to transport their product. When they were struggling, he would buy them up at distressed prices and turn the rails back on.
I wouldn't cry for nor count the dealers out just yet.