The answer to that will be different for different customers, or potential customers. A lot of iPhone customers like me are quite happy with the devices more or less as they are. The vast majority of people complaining about iPhones aren't iPhone customers. Frankly I don't really see why I should care what they think.
I'm more sympathetic to actual iPhone customers, or former customers that left, but looking at the numbers satisfaction levels with iPhones are through the roof. This is a teeny tiny proportion of customers. The case for Apple harming the interests of customers directly is super thin.
The other main dimension to this is Apple's commercial relations with other companies, mainly app store developers. I'm sympathetic to the idea that such relationships should be regulated to at least some extent. I'm glad controls on links to external payment options are being opened up, and there's pressure towards more equitable revenue structures. I think this is the main area Apple's control of the platform is open to abuse, but IMHO that doesn't extend to third party app stores. The current app store should be properly regulated, I think third party stores are a complete distraction. They'll never take off, and are probably going to be a worse experience for users.