What God hates, Christians must hate, too. God hates gay people, as it is clear in Sodom and Gomorrah.
It is important for Christian parents to teach their children to hate gay people in order to prevent their own children from becoming gay or transgender.
Teaching hatred for gay people is the right thing to do, because that is what the Holy Bible teaches.
The New Testament prohibits gay people from church (excommunication); the New Testament prohibits Christians from having gay or transgender friends.
If you tell your child to love gay people, then there is much higher probability that your child will experiment with homosexuality or become gay or transgender.
Do NOT portray gay and transgender people as normal or positive. This goes against the Word of God!