Christian Hate?

I don't understand how a religion that teaches love can act like this:

Voters will decide in November whether to repeal Maine's newly enacted gay rights law, the state's chief elections officer said Thursday after qualifying the measure for the ballot.

.....the law would protect people from discrimination in employment, housing, education, public accommodations and credit based on their sexual orientation....

.....News of the approval was hailed by Christian leaders who are spearheading the campaign.

"Praise the Lord," said Tim Russell of the Christian Civic League of Maine.....

This kind of thing aways makes me think of this song from South Pacific:

“You've got to be taught
To hate and fear,
You've got to be taught
From year to year,
It's got to be drummed
In your dear little ear
You've got to be carefully taught.

You've got to be taught to be afraid
Of people whose eyes are oddly made,
And people whose skin is a diff'rent shade,
You've got to be carefully taught.

You've got to be taught before it's too late,
Before you are six or seven or eight,
To hate all the people your relatives hate,
You've got to be carefully taught.”

(Richard Rodgers)