Actually, I'm gonna go on a limb here and argue that Intel doesn't have that much competition from AMD. Single threaded performance is not as good as Intel still, which means most games are still going to favor Intel for frame rates. I want AMD to succeed and I think Zen is a huge step forward since they have a competitive product, but so many people who don't know about PC's now are indoctrinated at this point to assume Intel is superior even if they have an inferior product.
Even though you can buy Android phones for $400 that are more powerful or as powerful as an Iphone 7, you don't see people rushing over to buy them. Most people don't want to think, they just want what is easy and if they believe Intel is the best choice, you are going to fight an uphill battle to convince them otherwise.
Mostly I see Zen buyers being people who know what they are buying, which unfortunately isn't that many people. By the time AMD has swayed enough of them over, Intel will have a chance to revamp their product line to stay ahead. AMD still has a huge battle ahead, but at least they have a product they can fight with and not get their face rubbed in the dirt.