To be objective, this amount is not critical for developed countries. In fact, this is income for 5-6 months (I can be wrong, but not much). Therefore, I would agree with the statement that it is just money. They can be earned again. And by the way, everyone who, for example, did not buy Bitcoin or Ethereum cheaply has potentially lost much more

I disagree here. I just googled and according to the internet the average wage for the UK was 29.000 pounds back in 2018 and that was before taxes! So this should be probably around 20k pounds after taxes. So this loss was basically exactly worth one year of wages after taxes for the average british worker. So if we assume that most people also have to pay rent or have to pay back a loan for their house or flat that they own than i would say, it is pretty hard for the average guy to put aside 20k pounds if you have that many running costs each and every months. So i would say that for the average person even in first world countries it is definitely critical to lose 20k pounds in one night. Maybe not in a way that your life is over and you have to sell everything you own but in a way that you need a few years at least to recover from that.
Hmm ... maybe I don't have a good enough estimate of the average income of the British, okay. But from your calculations it turns out that this gambler clearly does not belong to the class of ordinary workers, because despite the current expenses, the high cost of living, etc. he had vacant £ 20k to lose overnight at the casino, right? Accordingly, I can assume that this loss was not critical for him.
In the article it is stated that he lost a total of £40k pounds of which £10k came from borrowing from friends, family and banks, the rest came from a property that he had sold, so fortunately for him he's not so heavily indebted and even if he has an average job he should be able to bounce back as long as he doesn't make another mistake, however losing so much money in one single night even for a reasonably wealthy person is is still incredibly painful.
There's always a way for a problem to be solved but you should first solved out your addiction on where you wouldnt really play for a while and focusing on repaying those debts and since you do have some work
and some businesses then you might able to resolve it in no time.Its just a matter of dedication and seriousness of quitting gambling and fixed everything that had been mainly affected by such mistake
that you had done in the past.It might sound easy but its not since its neither you would able to get away or get rid with the addiction or would fail to do so.