Does the Gospel Hall target gays in its preaching?

No.

Despite news stories about a Gospel Hall in Leslieville (Toronto, Canada) public preaching of the gospel is not a protest or an attack on any group or individual.

The message of sin and salvation, if understood correctly, is not about a call to bring our nation back to traditional values.  Instead, defining sin as God sees it should cause one to look for salvation in Christ Jesus.

For a fuller picture on the events behind the story see -  Viral Video in Leslieville Neighborhood Not What it Seems

For what is preached about homosexuality in the Gospel Hall, see the question What should a church teach about homosexuality?