"capital-gains surtax"
In the United States we have "long-term gains" which are taxed preferentially at much lower rates. How about we just stop doing that.
Also for carried interest.
Also also the "never mind about those taxes at all" stepped-up basis for your heirs when you die.
All of these things simply distort the overall market as people modify their plans to account for these tax breaks.
If you don't like to see higher taxes, then replace these distorting, selective tax-breaks with lower overall rates to make up the difference. Or if you like higher taxes then don't do that.
But for gosh sakes can't we please get rid of these behavior-distorting tax laws?