Not at all. When people go to buy these products, chances are that they want them to work with the HUGE ecosystem of iOS devices that Apple sells if they own any of the very popular iOS devices. For the miniscule number of Echo users, like myself, that also use iOS, we just makes sure the devices we buy work in both systems, if possible.
As I already mentioned, the Echo is in a ridiculously small number of homes compared to Siri/iOS. The Echo sold about
5 million devices in its first two years. By comparison,
Apple sold 6 million Apple Watches in the 4th quarter last year. Apple sold 78 million Phones in the quarter. Guess what, they all have Siri built into their operating systems.
I don't hate the Echo, I have two of them. They are nice to have around. However, what happens if Apple brings out a device that can interact with the hundreds of millions of compatible iPhones on the market, works with the built in calendar, reminders, messages app, email, Apple Music, etc. That is when we can start talking about a fight. Right now, Siri and Echo are in two different worlds. When Apple encroaches on the Echo world, the real fight will begin. I suspect Amazon will still own the cheap-o market, since Apple actually cares about making money on hardware, but my suspicion is Apple would own most of the profits in the market like they do with the iPhone.