A lot of companies have claimed Qualcomm uses monopolistic practices.. Heck the FTC sued Qualcomm claiming they engaged in monopolistic practices that lock out potential competitors and make phones more expensive for consumers and originally won, then rejected on appeal. Either way, Qualcomm warns that Apple cannot avoid payments to them because they of their patients.
You do realize that's how patents work right? Apple needs to license the work of QCOM (and others) that they use in their phones. Apple has a portfolio of patents too that they can license or cross license to get better rates from others.
Apple is also more than free to not use Qualcomm's patents or technology- all they need to do is to invent an alternate technology for calls, data, etc. to work. Hell, if they had a WiFi only phone they could avoid paying Qualcomm anything at all- it wouldn't sell, but they could do it.
They are paying a reported ~$7.50 per phone on the patents for the 4G/5G- that's not even 1%. Even if it were $15 or $30, it's a bargain given that without it the tech the iPhone wouldn't be anything. You could build a Ferrari, but if there is no road to drive it on it's not a lot of good.
Apple charges $20 for a freaking 20W USB charger- the new phones don't even come with one any more so if you need one, you've got to buy it separately. Look at the memory up charge fees- do you think those are reasonable?
Apple builds really good hardware and many people love their ecosystem, and it's understandable that they want to build their own modem to be even more vertically integrated and avoid additional cost. Good for them, I think they may be the only major phone player that buys QCOM's discrete modem anyway (most use the SoC as I recall). I hope they pull it off- but the hatred for the company that builds arguably some of, if not the, best modems in the world for charging for their work? I don't get it.
Apple and Qualcomm can both be wildly successful- it's not an either or. Two American built success stories.
Lastly- I am pretty sure that the US DOJ is currently (March, 2024) suing Apple for monopolizing the smartphone market.
"Apple’s Broad-Based, Exclusionary Conduct Makes It Harder for Americans to Switch Smartphones, Undermines Innovation for Apps, Products, and Services, and Imposes Extraordinary Costs on Developers, Businesses, and Consumers"