"Conservative". Yes, I believe Erin O'Toole is what Karl Marx referred to as "Conservative Socialists" or "Bourgeois Socialists"

... this Socialism sought to depreciate every revolutionary movement in the eyes of the working class by showing that no mere political reform, but only a change in the material conditions of existence, in economical relations, could be of any advantage to them.

Sounds like Erin's Conservative Socialist party to me!