I think what you see in reality (at least these days) is that if ANY of the downsides to any of the identities are pointed out, you'll see people rush to have to defend it.
Also, I believe attaching your identity to being a waiter would be doing the opposite of what PG is suggesting here in the first place.
And I can only really speak from my personal experience. Having a diverse range of interests has given me a protective barrier that I didn't have when I was younger. When I was a teenager, for example, I didn't really have any skills except for "being good with computers". If someone (usually an older person) ever disparaged that, it destroyed me. I'd stew in anger and want to retaliate -- I can still remember. As I grew up, I diversified my interests. I got good at other things, too. Computers are now only a piece of my identity instead of the whole, and it's made me a lot less insecure.
In the latter case, if someone says that waiting is a dead end job, he can much easier say sure, yeah, not many places to go, but the hours are really convenient for my life situation. This is obviously a much more productive (or at least not destructive) outcome.
It's almost impossible to have a productive discussion with someone who is a [ideology]ist, but quite possible to have one with a reasonable person who is of the belief that [ideology] offers some good answers to problems in society.
The writer claims that you can't think clearly about any topic that's part of your identity, but I disagree with that. I think the thing that prevents you from thinking clearly is that the topic is tied to such a large part of your being. If you instead grow your identity beyond a single thing, your capacity for outrage becomes diluted.
I think this is indirectly a large part of the problem. The trend in society is that everybody must have totally unique and interesting identities, and since few people are in fact "special" enough to live up to that ridiculously high standard, they need to pile on everything and the kitchensink to get to some reasonable approximation. And you'll still wake up one day and dread that your identity is not, in fact, unique and interesting enough, which looks a lot like your "a lie" scenario. But in the meantime, you've set yourself up to spend a non-trivial amount of time fending off attacks, real and imagined, on any of the myriad of items that make up your identity.
In a past not too distant, our waiter-friend would be content to see himself as a good person, a good friend and a provider for his family.
To you, it might seem like 'fending off attacks, real or imagined', is a waste of time, when the waiter could just snap his fingers and suddenly be content with being a good person. But I don't think it's that easy. I think that mentally fending off attacks is a necessary component of becoming content. For the waiter to arrive there, he needs experience. He needs to have reasoned through his problems and put his answers to the test: what makes a good person? Is it living virtuously? Is it living according to one's values? What are my values? I value craftsmanship, yet I'm a waiter -- is that a conflict? In my opinion, the waiter needs to figure all of that out before he can become content. You might call it a waste of time, worrying about things that may or may not be consequential. I call it building up mental fortitude.
Becoming content, in my opinion, requires mental fortitude, and having a varied identity is one of the tools to help build that. I'm still struggling to see how limiting my identity to a single thing helps me be content in any way. Even if I limit it to something as simple as 'a provider for my family', what happens if I fall on hard times and can't do that anymore? It's going to hit me like a ton of bricks. I'd rather be able to weather that storm when it comes.
The point of limiting your identity to the core stuff, like providing for your family, is that those are the things are truly matter. If you can't provide for your family, that will hit you like a ton of bricks, regardless of whether it's part of your identity or not. But if you let a nasty comment about your hairstyle, the viability of socialism or whether Jesus really existed bring you down, you can choose not to care because it doesn't really matter (in that isolated interaction, the questions may well matter in the grand scheme of things).
Also, nobody said this was supposed to be easy, something you just flip on and off. But it's something individuals can think about for themselves and decide whether their haircut or profession is really important enough to feel attacked if someone makes a nasty comment.
When I talk about broadening my identity, I guess what I'm really talking about is exploring new interests and testing out new ideas. The thought of 'keeping your identity small', to me, seemed as if it was suggesting I should never invest myself into anything lest I open myself up to criticism (which struck me as a fearful way to live).
If I instead think of it as deciding between what matters and what doesn't, and only truly caring about things that matter, that makes a lot more sense, and is actually something I agree with.
Yes, that's exactly what he's saying.
His conclusion is that an individual should cultivate multiple identities, so that each one is enriched by the others and becomes more nuanced in the process.
[1] https://www.amazon.com/Us-Them-Identity-David-Berreby/dp/022...