I think you live too much in the narrow world (and tbh so do I) of macrumors where people do a lot of d---k measuring talking about 'performance'. I kinda think the vast majority of users of Macs are the ones you see at Starbucks: People who just want a solid, cool looking laptop on which they can do their budgeting, homework, web surfing, video watching, snap chatting etc. They ALREADY have plenty of speed for what they use their computer for and couldn't give a rats ass about getting more speed.
In fact, I'm sure most of them, if you asked, wouldn't know how many cores their computer has and would think it's stupid anyone would even waste their time worrying about things like that. The computer is their tool, they use it when they need it, it completely does the job to the point where they don't even notice it. And they certainly never think "dang I wish this was a little faster".
What they do care about is having a computer with little niceties like a usb A style port, since in colleges and all around the work world, USB A/B style flash drives are still one of the more common ways people share files. And from what I can tell, that's not going to change anytime soon. So while people like us are geeking out about a 15% difference in Geekbench scores, all they're thinking is "shut up and just give me a real USB connection".
As a side note, my daughter is 19 and I know a lot of her college age friends, and 99 percent of what they do on their phone is social media, or their homework. They also don't give a rats ass about almost any of the millions of apps that are available on the iOS platform. To them that's just a lot of crappy, boring junk (and frankly, I think most people agree with that assessment). So if you told them they could have a Mac that could run all sorts of iOS programs I think most of them would be like "whatever boomer".