In a tight definition, indoor plumbing is a luxury. As a person whose family vacations used to include an outhouse, I most certainly do not consider that a luxury in my life.
And then you will realize that it is a luxury to be able to zoom around the planet on a moments notice, to have a multiple 100's of KW personal energy budget per month and so on. These things are not givens and once they're gone everything that depended on them will be gone as well, because you will prefer to survive.
More realistically, we need to start making at least some steps. If air travel becomes more expensive, we'll do less of it, and at least try to find alternatives, personally. Society might try to find workarounds, like negative emissions, or construct alternatives (like high-speed rail) that are "good enough", at least for many flights. We might have alternative, emissions free fuel, someday.
But the real point is: this is not going to be as extreme as is sketched simply because inequality isn't going away, and secondly - this is necessarily going to happen gradually, so the impact will be reduced as society will have time to adapt. Let's just hope gradually doesn't mean glacially, because then we'll pay the climate price.
That depends on what you mean by "gradually". Climate is a non-linear system. It can change radically in a very small number of years. Within a single generation, for example, much of the world's current farmland could become desert. That is going to be very hard to adapt to.
If that comes to pass I hope I won't be alive to see it, but I think 'hard to adapt to' is putting it very mildly. You're talking about war and famine on a scale that the world has not seen before.
People in the west were not supposed to accept a lockdown, yet they did. They were not supposed to accept election fraud, corruption, high crime rate, yet they regularly do as well.
Acceptance is really not the hard part in this problem.
Being organized in such a way that the global long term interest of the majority is only a concern when it can be positively correlated to the short term interest of a minority, is.