That is absolutely not necessarily the case… FPGAs are present doing various things in many, many electronic devices, and many will continue to be FPGAs with no

That is absolutely not necessarily the case… FPGAs are present doing various things in many, many electronic devices, and many will continue to be FPGAs with no reason to spin an ASIC. For mass-market consumer electronics what you said broadly true, but a lot of industrial/commercial electronics the time-to-market and flexibility advantages outweigh the higher per-unit cost, because they can charge larger margins to make up for it. (The bit about volumes is correct, yes, you can negotiate good prices if you buy in large enough quantities).