firmly anchored in the biological and social realities that heterosexual couples have the unique ability to procreate, that most children are the product of these relationships, and that they are generally cared for and nurtured by those who live in that relationship.
Obiter, La Forest added that had he found the impugned definition discriminatory he would uphold it under Section 1 of the Charter "for the considerations set forth in my reasons in McKinney, supra, especially at pp. 316-18 .."[REF] .