I do t think this is necessarily true for many of the users here "defending" Apple.
It's likely that many people just use their mac and find that the hardware quality, etc is nice compared to other competition. If the company now wants to make it possible to fix your computer, I would imagine that would typically be celebrated by HN, since apple has had such a history of lock-in/non-customization problems with the professional computing demographic.
The note here about affecting small businesses is nonetheless a good point, and should be recognized for the potential problems it may bring; however I don't think discrediting the users by making it 'their identity' to defend some hardware is correct.
There are reasons to not like Apple products, but there are also quite a few great qualities about them as well. For example, the ARM processors they're making right now are excellent (best in class by a lot, as far as I can tell) - for battery life. While they may certainly have lower benchmarks than some i7s, they are doing fantastic for only using 15W. In today's age, few developers use their laptop for more than ssh and firefox, so it makes more sense for a good Linux dev to be on asahi Linux with an M2, while the 'typical business user' or 'creative type' would be more likely to use a Falcon Northwest TLX with a nice dGPU for their heavier workload.
So, again - there are plenty of reasons to not like Apple such as all the lock-in associated problems - but you can certainly use a device and it not be 'your identity'.