I wouldn't touch Amazon with the proverbial bargepole. It's been widely known for a long time now about how badly they treat their workers (lousy wages, rotten working conditions, no union recognition etc). Now it turns out the buggars don't even pay taxes in the UK, in spite of the enormous revenue they earn over here.

Since we can't picket or occupy Amazon, in the way which happened with Starbucks recently, it seems to me the only answer is to refuse to deal with them.