Liev Schreiber is opening up about his trans daughter and how proud he is of her for being a fighter.In a new interview with Variety, Schreiber said that his daughter Kai never had to come out as trans to him and her mom, actress Naomi Watts, because they already knew. Kai was always who Kai is, Schreiber told the publication. The biggest change came when she asked to switch her pronouns, But I suppose the most profound moment was her asking us to change her pronouns. To be honest with you, it didnt feel like that big of a deal to me only because Kai had been so feminine for so long, he said.Less than two weeks after Robert De Niro spoke publicly for the first time about his love and support for his trans daughter Airyn, Schreiber opened up for the first time and said that he couldnt be more proud of this daughters confidence in her identity.Kai is such a fighter, the 57-year-old Ray Donovan actor said. Its important that she goes, Hey, I am trans, and, Look at me.Watts is also supportive of their trans daughter. When Kai turned 14, Watts showed her love by posting a photo and birthday message on Instagram, "My darling Kai. Happy Birthday to you! Your fierce talent, sharp mind, hilarious wit and gentle soul fills my heart every day.See on InstagramKai may not have had a big coming out experience with her parents, but she put herself out on the world stage back in March when she made her modeling debit by walking the runway for Valentino and then starring in one of the fashion brands ad campaigns.Schreiber also had advice for other parents out there of children who have come out as trans. I dont know the answer for your kid, he said. I dont know what its like for you to be a trans dad. I dont know how you were brought up. I dont know what religion you encountered or what your spirituality is. And for me to tell you what I think about my kid feels like an overstep.But he reminded parents that trans or not, raising a teenager is challenging. I guess if I would say anything to someone whos having trouble with their trans teen or their adolescent trans kid its Teenagers are a headache. Theyre hard, Schreiber explained. It doesnt matter whether theyre trans or not because youll come out of this. But a trans teen is going to be a teen. Theyre such a pain so much of the time, and Kai is as feisty and outspoken as they come.The father of two also acknowledged that the trans community is under attack from right-wing politicians, but said he doesnt like to dwell on the negativity. I dont like to dwell on it too much, he said. To some degree, I feel like I dont want to overcook that fear or that anxiety. Theres enough in the world to be anxious and afraid about.But that hasnt stopped him from supporting the trans community. Kai will join her dad and his wife Taylor at a gala on May 9 for the Ali Forney Centers A Place at the Table, which is a center that provides housing and support for homeless LGBTQ+ youth. Schreiber explained that this is a way to raise money for the organization and support a community of people who dont have great resources, who dont have access to help, who arent being protected and looked after by their families.These are people who are being rejected. These are people who are experiencing the harshest version of humanity that we can offer, and some of them are not surviving it, he shared.