If these tax changes were actually about making the system fair then everything would be on the table.
From the capital gains made when selling your principal residence, to trust fund accounts to taxable deductions for charities, union dues, etc., to the tax free benefits of MP's, MPP's, and municipal councilors and mayors and everything else in between would all be looked at with an eye of how much does it cost and ultimately save the taxpayers.
Right now it is just piece meal changes that do appear to attack a select few without even any actual calculations of how much the gov't is set to gain from these changes.  
All or nothing Trudeau or stop with the "its only fair" rhetoric.