Gay rights activists in the Philippines have accused the Catholic Church of fanning "anti-gay hatred", following comments made at the World Meeting of Families conference in Manila.
Families are important to most Asians, gay or non-gay alike
Oscar Atadero, Progay Philippines
Addressing the conference, Church leader Cardinal Jaime Sin said that Christian family values were being "put into question by proponents of same-sex marriages".
But Oscar Atadero, spokesman for gay rights group Progay Philippines, said that the attack by Cardinal Sin was unwarranted.
He told the BBC that family life was central to most Asians, gay or not.
Delgates came from 82 countries
He also said that if same-sex marriages were legalised, it would "be a great help in achieving the same aims that the Catholic Church were so keen on pushing: stable monogamous families".
He also emphasised the key role that gays and lesbians played in the economy, by supporting their families financially.
Gay activists said that they were not allowed to attend the conference.
But organisers said that gays and lesbians were welcome as long as they did not attend as couples.
Philippine laws do not prohibit ceremonial unions of same-sex couples, but they are not legally recognised either.
Catholicism is practised by 83% of Filipinos and the Church has a paramount role in most people's daily lives.
Although gays and lesbians are generally tolerated within Philippine society, there are still widespread cases of discimination.