Controversial tennis great Margaret Court is the headline attraction at a Liberal Party fundraiser in Melbourne later this month, just weeks after she said homosexuality was an ungodly "lust for the flesh"..

Just last week Ms Court that same-sex marriage was causing problems in countries where it had been legalised.

Margaret Court, a devout Christian, was given the pariah treatment. Credit:AP

"That's what Hitler did. That's what communism did," Court said in a recent radio interview. "Get in the minds of the children. There's a whole plot in our nation and in the nations of the world to get in the minds of the children."

That interview followed her well publicised boycott of Qantas because of the company and chief executive Alan Joyce's support for marriage equality.