I just want to read. My book finding/vetting process allows me to pretty-much ignore a book's path to publication altogether (I don't, of course, but it's typically reduced to a trivial interest). I've never been a random reader, so the odds of me pulling something at random out of the pile (or even the genre) that I like (or hate) isn't relevant at all. The odds of pulling something "competent" out of the slushpile are even more meaningless. I feel I'm rather agnostic about it all (except when people try to assign some sort of universal truth to their personal experience with self-published books).
I'm no longer even "pleasantly surprised" when a self-published book I really like finds its way in front of my eyes. I was looking for a good book when I found it, after all. And I've always found that to be a labor of love (just like the struggle of finishing a complex/difficult book that turned out to be worth the effort in the end).
And try as I might, I can't for the life of me remember this golden age of fantastic-books-I-love-falling-out-of-the-sky-into-my-lap that others seem to imply existed before self-pubbed books ruined everything.
Nobody HAS to read self-pubbed books (and anybody who says they can't identify one after glancing at the book details isn't being very honest), so what's the big deal? Read 'em or don't. Just don't suggest your reasons for not doing so are any more universally objective than those that do (and vice-versa; self-pub readers).
In my opinion, "I do/don't read self-pubbed books" isn't really something that needs to be said (unless directly asked) in the first place. Just read. Doing so is just as easy as it always was.