בס''ד
I can't believe you are even asking this question. Of course it's true!
Why would Yoko Ono make this up? She is worth hundreds of millions of dollars and is world famous. She has no incentive to just make up a story like this.
Hillary Clinton is a notorious lesbian. As Bill Clinton said to his adulterous lover Jennifer Flowers: "Hillary has been with more women than I have."
My knee-jerk reaction, but after money, you want everyone to talk about you. The envirofascist cause isn't giving her the worldwide adoration she's going for, but perverts are all the rage, so now I know that some beatles person was married to Yoko Ono, who I heard of once before this and then forgot.
My opinion is that this story may have been a publicity stunt, and it's the perfect one because of how wholly believable it is. It wouldn't surprise me if it was proven, but until then, it gets Yoko's name in print and is (sadly) an ad for Hitlery, because this will endear her to voters. If homosexuals are "brave heroes" for saying it, then Hitlery is a brave hero now running for president.