Puberty blockers original use, what they were actually made for. Is chemical castration. They have been side to chemically castrate gay men, giving them the option at the time of either prison or castration. They are sued to chemically castrate sex offenders. Now we give them to children who may or may not have gender dysphoria. But are struggling with their gender identity. There are countries moving away from using puberty blockers. Instead pushing therapy as a way to help children. 
Also we don’t actually know 100 percent the long term negative effects puberty blockers will have on children. We know the potential side effects such as bone thinning and genitals not forming properly. But the data isn’t there to justify that these drugs are safe to be used on children. We need to stop pandering to a gender ideology and protect our children.