I am an Android user but this comment should be taken very lightly. As this is not the cause the truth is that Apple is at fault here for still using SMS as the default messaging protocol. However, with that being said, SMS breaks messages on iPhone and the devices have been geared towards iPhone users in away that makes it seem like Android is the issue with image quality and texting. The marketing is excellent on Apple's end towards the competition and it is working.
However, that doesn't mean iPhone isn't the problem. I have a sibling who got bullied for having an iPhone. Apple's answer to these problems is just, "get an iPhone." This is equivalent to, "can't figure it out? Just Google it." The problem with this mentality is it gives more power to monopolizing platforms. Apple is a growing giant and if they had their way you would just have an iPhone and if Apple has expressed anything in the past 8 years it's that they aren't exactly the innovators with mobile devices anymore. To me the problem is on an iPhone nothing would change.
A little irrelevant rant but my point is that the average iPhone consumer has been given a marketing ploy so it is a deal breaker because they think it is an issue and in all fairness it is one but only Google is trying to fix. Issue is that Google should have tried to fix it years ago. You can't blame iPhone users for wanting to use other platforms to message you if your message is compressed heavily by Apple's shitty and stupid fucking decision to keep using SMS to control the market. The care about user experience is overshadowed by the desire to use that as a means to make money off of a user that doesn't understand messaging protocols. Fuck Apple.