I really don't know how to move forward with this. The time delay is useful so a clueless user will have enough time to think about something that they would do before actually doing it. Let's say they won't easily install a sketchy app while drunk, etc. Remember that hackers rarely hack, they just socially engineer. For power users, you just need to wait for the 24 hour time frame. If it is a problem, you can set it up now so you no longer have to think about it. Now, if you are scared about Google removing the option, I think you have enough time to prepare yourself so it wouldn't have much of an impact when the time comes as it will not be that soon. It can also be delayed further by increasing pressure from the users just like how I said earlier that people can be loud about it or the minority can spread awareness so the minority becomes a majority. Because other than this, I really don't know what else we can do that is feasible for a regular individual.
Yes, we can have "alternatives" but do take note there are pros and cons to those alternatives one of which Google and Apple can bring 0-day fixes much faster than the alternatives (in this case, you have to choose between superuser control and security). For an average person, do you think self-custody is worth their time with increasing chances of finding 0-day bugs because of how good AIs have become? I have taken notes of the recent bitcoin hacking and it seems I would rather buy a bitcoin ETF because the self-custody hardware wallets were actually easy to hack. And, if we will talk about this further, I am curious, what superuser functionality is currently hindered right now with the developer verification thing that you really need to use?