Democrats are a coalition of special interest groups that come together to elect politicians that will assist those special interest groups. Republicans are monolithic. Any diversion from the common line is usually met with punishment.
Libertarians need to quickly understand that they are a coalition of closely related philosophical coalitions. The problem is that those small differences often cause easy rifts. As a party, the LP needs to stop trying to emulate the monolithic Republicans, and embrace the coalition mind set of the Democrats. We may not always agree on philosophy or tactics, but we still need to come together to work