I know the way that this man presented the material was upsetting to you, but in all reality it is what God wants you to do. See you have an advantage over some people, you know Christ as your Savior, and know that this is all done better in God's strength, than on our own. People by nature love people that love or are nice to them....you know (because you have God inside of you) that God's desire is that we love people who are nice, and those that despise us, or are our enemies. That is the love of God.
Love everyone with the Love that He placed in your heart when you accepted Christ as your savior. So much of the world does not know the love that God has for them, because so many have decided to preach hatred of sin and included the sinner in with the sin. So in a sense the world does think of God as one up in Heaven waiting to strike someone down if they make a mistake. But we know that God is not that way.
If more people knew that God loves them despite what they have done....then the more likely they are to accept what Jesus did for them on the cross. When people know that someone loves them, they feel happy and want to do everything to please them. The same is with God. When people know that He loves them, they will desire to do everything to make Him happy...by living the way that pleases Him, and following His ways.
In my opinion the speaker was right when he said that when we all learn to love, healing will begin to take place. The devil wants us all (believers and non believers) to grab ahold of division and strife and hatred, because those things let the work of the devil in (James 3:16) and if we can do what vs. 17, and 18 say then we can plant the seeds that God wants planted.
Always remember that God loves everyone. Even if they have committed murder, or are gay, or are an adulterer, or whatever. Not one person goes to hell for sinning, but for not accepting Jesus as payment for their sin.
Blessings little man!