You can still MiTM your own devices which use SSL, just add a custom certificate to them (all major MiTM tools support this). The problem is not encryption...

You can still MiTM your own devices which use SSL, just add a custom certificate to them (all major MiTM tools support this). The problem is not encryption... the problem is buying black box devices which are not transparent to their users. Bad manufacturers will always be able to do this whether we advocate for encryption everywhere or not.