Basically the poorly educated demanding the right to be lazy.
I have been dyslexic all of my life, I worked hard to overcome it, by understanding WHY words are spelled the way that they are, etymologically, lexicographically and philologically.
To simply throw a whole branch of linguistics away for the sake of convenience disgusts me. English is an evolving and amazingly nuanced, precise language, the most accurate in the world, as locutors of this language we should be proud and defensive against its devolution in to a set of monosyllabic grudgings and phonetic spellings from which no original meaning can be defined.