Roe, a former New York and Boston marathon winner, believes the impact of allowing "biological men" to compete against women will be detrimental to the sporting aspirations of young female athletes.
"Women have not been asked and we make up more than 50 percent of the population."
"At the highest level, it is impossible to compete with. As women, we have had a real struggle through the last 50 years, even having our own sports and having women participate in sports.
"This would be a huge retrograde step in my view."