Not sure what you mean by real cameras. If you're talking about DSLR, then I would agree that they're in decline, but if you're talking about any non-phone camera, I would disagree. The mirrorless market is still quite healthy. Smartphones fill 80-90% of demand, the majority of the dedicated camera market is mirrorless. Commodity cameras are less popular, but demand for higher end dedicated cameras remains strong with new cameras (and innovations) coming out all the time.