I recommend Bertrand Russell’s essay “Why I am not a Christian”. It is still very relevant.
I think that Pastor is wrong,if he knows his Bible how would read 1 Corinthians 6:9. Paul a Disciple of Jesus, whom preaches Jesus’s teachings tells you homosexualty is wrong. God Burned Soddom Gomorrah for it’s Sexual immoral behavior.
This is what Jesus said: Male and Female God created them; therefore a man shall leave his father and mother and shall be united to his wife, and they shall become one flesh…’pretty cleaer about sexual relations, and the parties to a marraige,, isn’t it?