Trudeau and Butts have this backwards.  

First, deal with the government spending problem before increasing taxes.  We didn't have this problem two years ago.  And I hear they haven't really even started shoveling out the 'stimulus' money yet, to the point one could question if it is needed now that the economy is improving somewhat.

Second, encourage the middle class to invest and discourage taking on more debt (may be too late for many, but at least try to educate and encourage the next generation).

Third, investments in Canadian companies can create jobs.  Yes, there are high net worth investors who disproportionately benefit, but try and find a business that doesn't have some excess at the top.  

Increasing capital gains inclusion rates will have unintended consequences, such as capital moving to the U.S. (why deal with tax risk here when the U.S. is become more tax friendly?), potential job creation impediments, and discouraging young investors.

2019 can't come soon enough.