Wuldric, there are no arguments at all in your 21.43 post and your lofty tone does not disguise this.
" No-one does tax planning to avoid paying taxes in the UK. On the contrary, most tax planning is UK tax-base accretive - ie most multinational corporations try to ensure they declare the most possible revenues in the UK."
Actually, to be fair, this is the closest thing you do have to an argument, but it is missing the point. If companies choose to report and pay taxes in the UK it is because the rates are extremely advantageous, ie, low. There is a strong moral argument that they are unfairly low and that encouraging businesses to take advantage of this is unfair and disadvantageous to everyone else. I suppose you think that we should be grateful for having them here at all, on the specious basis that we benefit from crumbs from their table. This argument has been disproven. The knock-on effect on property prices, etc, especially in the capital, has blown our cost of living out of the water and is exactly what is making it very hard for normal people to get by. There are many more ins and outs of this particular issue, but I think it is worth at very least clarifying that you are missing the point although actually enhancing it by mistake, by reinforcing that big business likes it here because they pay less tax.
"You then leap to a globally harmonised tax rate which is sheer nonsense, on so many levels. Then you move to talking about salary differentials "
that use of the word "leap" is misleading. No one is conflating these things. It is allowed to make several different points in one post.
I would be interested to know what your arguments are about these issues. The harmonised tax rate - obviously I can see how this is fiendishly unworkable right now - but why sheer nonsense? We try to work together on environment, human rights, etc. It is associated with human rights that business cannot be to the immense disadvantage of ordinary people, which is something that individual nations have attempted with greater and lesser extent to enshrine in law. Now we are a global economy and any serious attempts to manage the effects of business on workers should take place with a global view. Obviously it isn't - and I am sure you will say can't - but why nonsense? why be so small, so petty?
similarly, there is no argument in your sweeping, nasty, post about why it is silly to keep an eye on salary differentials. As we all know, money is relative. Our income is meaningless unless compared to what you are trying to buy with it. Living amongst people with 7 figure bonuses distorts the prices of basics, like housing, and it becomes very hard to get by. If people had less money to buy their second and third homes, maybe some people would find their firsts a little more affordable.
I don't know what you do when you say you work in this field but it seems to me that you massively overidentify with the status quo. We actually need to look at how we all fit together as a society - not just nationally but globally - and stop expecting individuals to work miracles on shitty systemic situations. Sure, some individuals will. But why make it like that in the first place? Why agree with it being like that?