Ruth Davidsons of the party

Osborne called for Davidson to “flex her muscles” over Brexit and push to prioritise the economy and free trade. “I think there is no majority in the House of Commons for a hard Brexit and if the Ruth Davidsons of the party are starting to flex their muscles, in my view that is only a good thing." (The Guardian.)

Does the genetive phrase "the Ruth Davidsons of the party" mean all members of the party who identify themselves with the Ruth Davison's politics?