Every law, regulation, and policy is written by a human, So every loophole and subsidy was placed there by a human for a reason. Sometimes it is to advance a policy, other times it is repayment, and sometimes it is done by arrogance. When it comes to taxes the first two are the most common causes.
Before you close a loophole or subsidy you better have a very good idea as to the number of jobs it will cost.
Should we redo the tax code - Yes; anything more than 100 pages is too long. Should we be stampeded into for “bipartisanship - NO. It has been the drive for bipartisanship (aka spread the wealth/blame) that has gotten us our current tax code.
Moral of the story: Don’t get rid of my tax breaks; just get rid of his tax breaks.