Disrupting Church

I am very curious to get your take on a recent event at a Lansing, Michigan church where homosexual protestors disrupted a service.

Read the story HERE.

How should a church respond to such an event?

Is the body of Christ called to "welcome" homosexuals? If yes then what does it mean to welcome? If no then what is the alternative?

Is there a difference between "welcoming" and speaking the truth in love?