Since Trainor's comments, the image has been removed from the "Vote NO Australia" page which continues to post anti-marriage equality content to its 3,871 followers.
The handsome Avengers star is using his platform of celebrity to encourage his fellow Australians to vote in favor of legalizing same sex marriage next month through a passionate Instagram message he shared on Wednesday.
The Thor: Ragnarok star utilized Instagram on Wednesday to call for all "open minded, free speaking, laid back, life loving" Aussies to keep in mind to enroll and update their electoral details so they can vote YES on marriage equality.
Australia is now holding a nationwide poll to determine whether its citizens want legalized marriage equality.
"If you want to support gay and lesbian Canberrans to get married, you need to be on the electoral role so you can vote yes in the postal survey", he said.
Crowe tweeted: "Hey Australia, I love you".
Enrolled voters will begin receiving surveys on September 12, and the Australian Bureau of Statistics (ABS), which is overseeing the survey, says all forms will be mailed out by September 25.More news: Aid Agencies: Iraqis in Tal Afar Face Danger, Need Protection
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The circulation of anonymous fliers and posters, like those seen in Melbourne and Sydney, "really shoot the nation", said Sally Rugg, the marriage equality campaign director at GetUp, an activist group.
Thursday is the last day for Australians to register with the Australian Electoral Commission and ensure their details are up-to-date. It's time for marriage equality.
But more than 500,000 people aged between 18 and 39 are missing from the roll.
The results of the survey are expected to be announced on 15 November (17).
'I've said it before, Everyone should be able to love who they want.
Campaign advertising for the postal survey is not subject to same rules and regulations that apply during a normal election. But, if you participate in this survey, you will be making your voice heard on a major part of Australian history.
"I do not think that if a gay couple gets married, who are living together, gets married, that doesn't threaten my marriage to Lucy, which is almost 38 years of marriage", he said.