You have clearly suffered personally as a result of online gambling, and for that I'm sorry. I can also extend some support to your inference that more people here may have a bigger issue than they are letting on. Like Azzurri I was shocked by Dave1883's frank post.
I find it quite insulting though that you should judge others' self-control by your own personal parameters. You seem unable to accept that some or many of us look upon spending 50 quid each weekend on a few hours entertainment as a treat, the same as some would going out on Saturday evening and spending 50 quid on a taxi, meal and a few drinks.
I personally play the same stake each month at each site, limited and all returns when received are sent to another online bank where they cannot be withdrawn other than by me writing myself a cheque. So, I budget say £50 per week AFTER all other savings, bills and expenses. I write the 50 off before I start. Any returns after my entertainment are a bonus and get sent over to that account. After each 6 months I have therefore spent £1300, minus what I send to the other account in winnings. The last 2 6-month periods have yielded a net profit of over 3k. The 2 before that lost me 1400 in total.
Please accept that many of us have inherent discipline which is consistent and thus never leads to issues. To back this up we utilize the facilities sites have for responsible gaming like deposit limits. I also have too much in life to ever risk playing it away on what is essentially a RNG with a 96% return.
Like any of the 'vices' it will have its casualties. Society must accept that, despite the best intentions of legal controls. To have no risk is to have no society, be drones of the nanny state.
I am sorry you appear to be a 'casualty' (or someone near you is) but please grant us the respect of allowing us our own freedom of choice.