Bishop Williamson was wise for stating that we cannot do anything politically anymore, things are too far gone.
Cardinal Manning, referencing the Church Fathers and other doctors and theologians in "The Present Crisis of the Holy See" speaks of the signs of the end times, and one of them is the total and complete dethronement of Christ in the political sphere. This is a necessary thing that has to occur in order to usher in the Anti-Christ.
We have to be resigned and accept that Our Lord said there will be hardly any Faith left on the Earth when He comes back. It seems people do not want to face this fact. Moreover, society is composed of families, and the society we are in is a reflection of the state of families today. Think about it: if everyone simply focused on sanctifying themselves and their families, things would actually improve, or at least ensure a safe eternity for those dear to us and in the Church.