Let them do it, and trading business will shift to US. Bunch of idiots, Sweden did it, and we all know the outcome:
"During the first week of the tax, the volume of bond trading fell by 85%, even though the tax rate on five-year bonds was only 0.003%. ...."
https://en.wikipedia.org/wiki/Swedish_financial_transaction_tax
The effect wasn't as dramatic with the french and italian transaction taxes introduced recently. This might encourage EU to tax financial markets further.
Bernie says we will be happy to pay the taxes.... Never met anyone happy to pay taxesBernie Sanders, Mayor Pete and several others on the left want to implement something like this here. Keep this in mind when you vote.