You are willfully misrepresenting the situation. The issue isn't that she wrote "men cannot be mothers", it's that she is telling a trans woman "you are a man".

You are willfully misrepresenting the situation. The issue isn't that she wrote "men cannot be mothers", it's that she is telling a trans woman "you are a man". If people were running around and telling feminine-looking men "you are a woman" it would be the same situation and handled the same.