A new market is made when a product or service which previously was too expensive becomes affordable to more people due to innovation. There's thousands of example, many of them in your own life.

But you are decided. Being negative is what you have chosen and there's plenty of people who will back you up because they are also afraid.

Could you give any examples of how these new markets have positively changed my life as a consumer? Did any of the stuff I buy become cheaper or better, or get replaced with something else entirely (that is cheaper or better)?

Where is the horse buggy -> automobile transition of this AI age? Where is the industrialization that made clothes 10x cheaper to make? Show me examples.

There's two many examples to mention, but you will shoot down any example I give. So what's the use? Also are you asking specifically for AI or for invention in general?