Supporters of traditional marriage in France protested the government's push to legalize gay marriage and give homosexual couples the right to adopt.
Hundreds took to the streets in Paris this week to speak out for traditional values. They carried posters that read, "A father. A mother. We don't lie to children."
Tugdual Derville, general director of Alliance Vita, said protecting children is the group's primary aim.
'We are against (this law) in the name of the rights of the children because we want to protect the children against a very unfair privation, the one of a daddy or a mummy," he said.
"It is necessary to help the families who have problems, single parents, children who need support. But it seems to us unfair to deliberately decide that a child won't have a father or a mother," he added.
The bill is set to be introduced to the Parliament on Nov. 7. The debate is expected to last several weeks.