iOS is a majority share, but not by much.
My opinion here might upset some fanboys:
Android is in a sad state right now with only a few big OEMs pushing into the market, and the fragmentation is what’s killing it. The average person doesn’t care about customizing or having a micro SD slot, they just want to text and browse TikTok - so they choose a phone that’s simple and works without headache for years.
On the android side you have really only Samsung, Motorola, and sorta google. Motorola covers a lot of the budget android market, but it’s cheap disposable phones. Samsung covers the whole range, but then you buy into the bloatware and duplicate apps. Then you have google sitting in the corner eating glue, consistently releasing phones with hot SoCs, bad reception, and botched software updates.
For the average person the iPhone makes complete sense as Apple only releases a few phones a year, and for a while now every single one has been relatively issue-free. Customers feel confident that the newest iPhone will be a similar experience, copy all their data over in 5 minutes, and work well for years to come.
So really I wouldn’t say it’s a case of “profitability”, moreso lacking compelling feature to draw in new customers, while continuing to bleed customers to the iPhone because the average person doesn’t want to be bothered with complicated features that aren’t consistent across android OEMs. We’ve seen a lot of Android OEMs leave the US market because of these reasons.