The people who sell cables and the people who WANT to hear a difference are the ones that will tell you there is a difference.
No. I’d much prefer not to hear a difference in cables because I could save a helluva lot of dough. But the fact is I do hear differences and once heard I can’t un-hear them. If you can’t hear differences in cables good for you, but just because you can’t hear them doesn’t mean they don’t exist. Just be happy with your bad ears and/or bad system and leave the rest of us alone.