Re: @JMiles
"So where's (at least one) brexit bonus?"
I was going to keep well clear of this whole discussion, but if remainers are going to persist in this 'where's one good thing about Brexit' nonsense, it seems sensible to speak up.
There were benefits in remaining, and there are benefits in leaving.
I shall not address the benefits of remaining, since you have not asked for those.
The UK's response to the vaccine roll-out (including sign-off for use and production/acquisition), and then the ability to lift lock-down several months earlier than in the EU, saved the UK huge sums of money (plus, by re-opening access to the routine services of the NHS saved countless lives).
The UK is no longer complicit in the agricultural dumping that the EU has been doing in Africa (the last case I am aware of involved dumping milk powder, mixed with palm oil, onto the west African markets, meaning it not only under cut local farmers but meant that the poorest people there were under-nourishing their children, since the palm oil content reduces the milk's nutritional value).
The use of animals for testing cosmetics which had been made legal again by a EU ruling (in limited circumstances, true), has now been explicitly blocked, so animal testing for cosmetics is no longer permitted in the UK
(Source: https://www.bbc.co.uk/news/uk-politics-65623580)
We have indeed, taken back control - meaning that for most issues, UK politicians can no longer get away with blaming Brussels, like they have for decades (and like politicians in the remaining EU 27 continue to do). Thus, our politicians are now more accountable.
The UK was historically a brake on the EU federalist agenda / plan for ever closer union. With the UK having left, the EU can now more readily progress in that direction. (I'm assuming that you are not so parochial as to only want Brexit bonuses that apply to the UK).
Outside of the EU, the UK is able to make foreign policy decisions much more speedily than the EU can, since the EU typically requires consensus, which inevitably, takes time. If you doubt the value of that, you clearly were not paying attention to events 18+ months ago, when the UK was one of the few countries rushing arms to Ukraine immediately before and after the Russian invasion, while the EU (predictably and rightly, before people get upset) sought to achieve consensus amongst 27 nations.
The UK has left a customs union and pollical organisation that amounts to about 14% of the global economy (16% if including the UK), the countries of the EU 28 (ie EU27 + UK) having previously (1980's) amounted to about 25% of the global economy, and joined the free trade organisation that is CPTPP (which we could not otherwise have done), whose 11 members (prior to UK joining) amount to about 14% of the global economy, but whose importance has been growing. Furthermore, the potential expansion of the EU is limited to relatively small/relatively poor countries, plus Ukraine (which is understandably going to be a huge drain on global funds for many years after their victory against the Russians, to repair the damage the Russians have done). Oh, and Turkey, though we were all told that they were definitely not joining the EU. The current and potential candidate nations for CPTPP meanwhile include a number of significant and significantly growing economies.
The global tilt towards the indo-pacific region is not just a thing that applies to the military.
That is clearly somewhat more than one Brexit bonus, and the only bit of internet searching I had to do was to find the link to the BBC story, so with only a small amount of research, I am sure that you yourself could find many more examples of a 'Brexit bonus'. Sadly, I suspect that you would rather repeat the lie that there aren't any, than actually discover the truth.