I would like to see some studdies that support your claims. And if that's true, just keep eating fermented foods/kefir and so on for the rest of your life?
It wont kill you and if it keeps the candida away then great, but I do not agree, if bad bacteria can colonize than good bacteria should be able to do the same. Though prebiotics should not be underestimated. In my oponion, boosting the immunesystem is the major objectiv when fighting systematic candida. And this can be than in a alot of ways, not only probiotics.