Intel illegally abused their monopoly to prevent AMD from getting as much traction as they should have gotten. They've been convicted and payed billions in fines over that behavior.
Intel should have suffered much more at the hands of the Opteron and Athlon 64 chips; if they hadn't been abusing their market position things would have worked out better for AMD and their stumble with Bulldozer wouldn't have hurt as much as it did.
For the curious, Intel would sell CPUs at retail to OEMs, then provide a rebate/kickback to discount those CPUs. Shipping AMD processors would reduce those rebates. Shipping too many AMD processors would eliminate the rebates outright. This made selling AMD-based systems non-tenable for many OEMs.
https://www.ft.com/content/f460ef98-930f-11e7-bdfa-eda243196...
https://www.google.com/search?q=Intel%20wins%20review%20of%2...
I'm not sure whether or not the latest jabs at Intel and the prophecies of their inevitable decline are accurate this time or seeded in people's hate of older giant tech companies, but this is not the first time I've read of Intel's demise. Just going by earnings its at best premature to cede the future to AMD. I will say that BK's abrupt departure did raise some concerns in my mind.
https://www.anandtech.com/show/1517
Intel never definitively reclaimed x86 until Conroe/Core 2.
They have had a ton of flops and misdirections. The 186. iAPX. i740. Xscale. Itanium. The FDIV bug. Pentium 4.
AMD has had Intel up against the ropes more times than they can count. Faster and cheaper 386 and 486 clones threatened them. The K6 came around and beat the Pentium II. AMD leap-frogged them with their 64-bit chips. Intel has always came back and stomped them right back into oblivion. They'd probably be close to turning the lights off if it weren't for Ryzen.