...[T]he only means I have to stop ignorant snobs from behaving towards genre fiction with snobbish ignorance is to not reinforce their ignorance and snobbery by lying and saying that when I write SF it isn't SF, but to tell them more or less patiently for forty or fifty years that they are wrong to exclude SF and fantasy from literature, and proving my arguments by writing well.
Sure, I knew the differences between a space opera and a hard-boiled detective story and a historical novel...but I never cared about such differences. It seemed to me, then as now, that there are good stories and bad stories, and that was the only distinction that truly mattered.