Constitutional Reform and Governance Bill (Money) (No. 3)

Those of us who feel that we ought to move to a more proportional system cannot support the Liberal Democrat proposal, because it would break the link between the Member and the constituency. I would find it absolutely onerous to be a Member of Parliament representing the whole of Birmingham, for example, along with other Members. Why are the Liberal Democrats not supporting the proposal put forward by the royal commission, which is well thought out? It would move towards proportionality but by and large keep the link between even the additional Members and their constituents.