Virtual, 12-hour broadcast took place on July 10
Andrzej Duda narrowly defeated Warsaw's mayor in Sunday's runoff
Widely discredited practice causes emotional, physical harm
Country's president on Tuesday signed bill that repealed 2019 law
The 24-hour virtual program took place on June 27
Lawmakers in former Yugoslav republic narrowly passed bill on July 1
Laverne Cox, Alicia Garza among participants
Andrzej Duda previously said LGBTQ 'ideology' worse than communism
Lower house of Parliament approved government proposal on Tuesday
Advocacy groups, gay National Assembly candidate deliver food