As for reducing corporate taxes in the US, President Kennedy did it to great success, reducing the rates significantly and increasing economic activity and revenue to the US treasury. President Reagan did likewise when he inherited a recession upon taking office, with the same great effect. President Bush 2 did likewise, after the intel bubble burst on the stock market and 9/11, with similar increases in tax revenue from lower rates.
The choice seems to be, at least to me, do you want to gouge business so they refuse to expand and hire, or would it be better to take less from them, have them hire more people who pay taxes and buy goods, expanding the economy exponentially, and increasing tax revenue in the process? I'll take the latter every time.