Good column.
Kenney knows from experience how hard it is to battle the Leftie straw man regarding the social conservative "hidden agenda". 
In Ontario, Patrick Brown has already warned potential PC candidates that they aren't to spout off on any personal so-con ideas they might hold because they won't be part of the Party platform. 
The NDP in Alberta, and the Liberals in Ontario just love to exploit this stuff to deflect the narrative from their own sorry records. 

As an aside, the proposed "outing" legislation sounds interesting. 
Privacy issues regarding a child seeking professional counselling or medical advice/assistance is one thing but the GSA is a club. 
used to be Gay-Straight Alliance- now they prefer Genders and Sexualities Alliance.
Advertised as a support group but essentially a political activism club. 
No problem.
So why the secrecy?
Wouldn't most parents be interested in knowing if their child feels the need for a support network?