The city of Zurich is indeed in need of parents to care of children, hence this clearly explicit video:
"This just shows that the City of Zurich took a step back," said Barbara Lanthemann of the Lesbians' Swiss Organization. "The first concern of everyone is the well-being of children. And the well-being of the child is as much guaranteed with a homosexual than with a straight couple."
As reported by RTS, there is not a targeted campaign in French-speaking Switzerland, more reserved about families with gay and lesbian parents.
Adoption is currently not granted to same-sex couples and that no matter where they live in Switzerland.