Re: Charity by numbers
a) Per capita? Since most of the English people I've met are tighter than a crab* I doubt this is a worthwhile statistic. It's the intent that matters, not the forcible removal of tax monies sans polling for opinion of the taxpayers.
Firstly, challenging hard numbers (viz ratios of the international development aid amounts and the population of a given country) requires a bit more effort than citing personal anecdotes of the tipping habits. Every country I've been to has its own tipping etiquette. Some places, tipping is mandatory. Some places, tipping is a serious insult. Some places you must offer the tip three times before it is accepted. Some places you'd put your tip on the card. Some places you must tip in cash even when paying by card. Some places you tip everybody serving you. Some places you'd tip the waiter, but not a taxi driver. Some places you tip 15% of the bill. Some places you tip by rounding up to the next round number. A visitor will invariably get the etiquette wrong in the beginning; some visitors will never get it right. If you are going to get all worked up over this, you'll never stop being angry - which in turn will greatly decrease the chances of you being on the receiving end of a tip.
Secondly, despite all its warts, the UK is still a democracy. You can make you opinions known during the general elections (there is one under way right now, in case you haven't noticed). You can also write to your MP; you can petion the parliament; you can organize marches and protests; and so on. I won't claim the outcome will always reflect people's will, but saying that your voice can't infuence anything is just plain ridiculous.
2) You can't cite the EU to support a UKcentric point any more. You are in denial of article 50 mate.
Obviously I can and I did and I will do so again if my fancy takes me that way.
As far as the article 50 is concerned, it ain't over until the fat lady sings. Personally, I am sad to see the UK subtracting itself from the greater european project, but in this particular case my opinion is immaterial - that's for you Brits to sort out.