Actually Intels largest consumers are cloud servers not retail, they make more money selling expensive chips to corporates and Cloud customers. But they keep their dominance through market share and importanly mind share with the masses. Afterall the people making those decisions in corporates are consumers too. If they loose mind share on Desktop they loose market share of Servers. ARM is a threat and M1 is making it feasible to the change the perception.
I can't speak for other buyers but I run an internet based business and pay for many many many servers. All the new servers we deploy will be AMD based due to the performance. We're currently waiting for Milan EPYC processors to launch to do a big upgrade drive this year replacing all our dual-socket Ivy Bridge-EP based XEON systems with single-socket EPYC's.
That's going from 2 x 8 Core and 2 x 12 Core systems (16 and 24 cores) to 1 x 32 Core systems. Huge reduction in power consumption and heat combined with a huge increase in performance.
I would literally only consider buying Intel today if I'm buying old used equipment because the older Intel stuff is way better than the old AMD stuff (before EPYC). But buying new? I would never buy Intel, it makes no sense from a performance or performance per watt angle.
Not on desktops (Ryzen wins) not on Workstations (Threadripper and Threadripper Pro wins) and not on servers (Embedded EPYC and Socketable EPYC wins with single and dual sockets). Whether I need 8 cores or 128 cores AMD has something for me and at the top end Intel can't compete.
Literally the best socketable XEON you can get right now performance wise is a 28 Core but I can get a 32, 48 or even 64 core processor from AMD that is faster not just overall but also per-core due to higher IPC and base clock speeds.
And this is even before you consider AMD's memory advantage with 3200MHz ECC support, 8 channel memory vs 6 on the Intel XEON Scalable system. 2TB of RAM per processor vs 768GB-1.5TB on the XEON. The 128 PCIe 4.0 lanes vs 72 PCIe 3.0 lanes on the XEON. It's just not even comparable.
And I say that while having a Core i9 10980XE 18 Core in my workstation and a Core i9 8 Core in my 16" MacBook Pro and so forth, I just see what is available and buying Intel today just makes no sense to me until they come up with something new.