>They also pay 0.005% tax in Europe, sure it's legal, but is it morally ok? They certainly benefit from all the European infrastructure and academic research

Not entirely sure how they benefited European Infrastructure and Academic Research if we assume Apple made 100% of its R&D in US.

And it is morally OK fo me to not paid a single dollar of tax if I didn't make ANY profits.

A lot of people seems to have an idea where Tax should be based on Revenue and not Profits, which is basically what GST or VAT really is.