The PM believes you can't cherry pick rights.
Unless, of course, you are members of the Supreme Court.
Which is exactly what they did. From the entire universe of potential rights (smokers' rights, vegans' rights, children's rights, bicyclists' rights, etc.) they cherry-picked exactly one, "sexual orientation" for addition to the Charter.
And then, having cherry-picked it, whenever this right conflicted with another established right, such as freedom of conscience, speech, or religion, guess which one the Courts favoured? Exactly. They should have recused themselves for ideological bias.
The PM says you cannot cherry-pick rights. He does, however, reserve the right to cherry-pick who will be appointed to the Courts. And, with his latest proposal for an emasculated Parliament, that's the next-best thing.