There is still a massive, massive amount of enterprise software (see: everything at Apple) that has millions of lines of code in Objective-C. That code will never be rewritten. If you have millions of dollars riding on a framework/app in Objective-C the business needs outweigh any perceived language niceties you get in swift.

This aside - I also disagree with you, Swift is a worse language in a lot of ways, not to mention the extreme compile times and purely unfinished concepts, as well as bugs related to seemingly foundational things like auto-created initializers for structs not getting picked up properly by sourcekit.