Hubert Sobecki, the head of Love Does Not Exclude, a group that seeks marriage equality, said the situation was particularly frightening for young people struggling with their sexual identity. He said some were afraid to come out, and some straight youth were being bullied because they were perceived as gay.
Call centers have been working to prevent suicides, but they don’t always succeed, he said.
Last month, a transgender girl killed herself by jumping from a bridge in Warsaw. When a group went later with a rainbow flag to the bridge to honor her, its members were assaulted.
“There is lots of hate in the public media and by the ruling party, but you also have a growing movement of people realizing we are fighting for our lives,” Mr. Sobecki said. “This movement is not about luxury or privilege; it’s about the privilege of staying alive when you are a teenager. It’s about survival.”
L.G.B.T. rights became a topic of public debate this year when Mr. Trzaskowski, the Warsaw mayor, who is from the centrist opposition party Civic Platform, issued a rights declaration setting out the city’s commitment to try to help find shelter for gay youths rejected by their parents. He also promised to incorporate World Health Organization guidelines on sex and tolerance education into Warsaw’s school system.
Poland’s education minister, who was sworn in on Tuesday, described the declaration as an attempt to groom children for pedophiles and said that sex education was the responsibility of families only.
By seizing on the issue, Mr. Kaczynski has managed to energize the country’s conservative base and divide the political opposition. His party celebrated an overwhelming victory in elections for the European Parliament last month.
Many in the opposition have concluded that supporting L.G.B.T. rights did not help them and are now seeking to back away from that issue before national elections in the fall.
Warsaw’s pride parade is being answered a day later with a “March for Life and the Family” in 130 Polish towns. The event will begin on Sunday with a Mass for children, and the theme this year is protecting children from sexualization.