Tesla’s supercharger network is a cost of selling their vehicles to soothe customer range anxiety. Legacy auto never understood this (or ignored it). That’s why Tesla had to spend $1B to build the global network [1] and has a factory to churn out 10k Supercharger stations/annually [2]; no one else would at the speed needed (VW paid to create Electrify America due to their Dieselgate settlement, which dictated no VW branding, hence the EA brand).

If you make the argument that profitability will arrive when utilization increases [3], it'll be kept out of reach by a combination of demand charges and having to colocate batteries (both of which Tesla and Electrify America do at some stations) to shave the demand curve (demand charges can be significant) from drawing MWs of power constantly most of the day.

Tangentially, gas stations aren't a great fit for fast DC charging (who wants to hang out at a gas station while they charge except perhaps at a full service biz like Wawa or Buc-ee's?), so those stations are instead getting installed at grocery stores, malls, and other places where people will make better use of the dwell time [4]. Most people will charge at home (or work, in some cases) except high daily utilization users (taxi, livery, law enforcement, etc), heavy duty use (towing), or those traveling long distances in a day (road trips).

TLDR It's a utility, not a profitable business.

[1] https://supercharge.info/map

[2] https://www.teslarati.com/tesla-supercharger-v3-factory-comp...

[3] https://www.forbes.com/sites/bradtempleton/2022/10/26/electr...

[4] https://www.vox.com/recode/23023671/ev-charging-network-gas-...