Landmark ruling stems from Bulgaria case
Advocacy group will hold protests across the country
Defendants faced up to three years in prison
Plaintiff denied access to children because of gender identity
Non-binary person's Aug. 7 underscores increased risk
Intersex activists also sharply criticized measure
Advocacy groups have sharply criticized Viktor Orbán's government
Referendum passed by 63-37 percent margin
Victor Madrigal-Borloz spoke at ILGA-Europe conference
Prime Minister Joseph Muscat is among measure’s supporters
