One of the main reasons why political parties fail to follow their ideology is the desire to win elections and maintain power. In many cases, political parties may have a clear ideological platform or set of values that they advocate for, but when it comes to actual governance and decision-making, these principles may be compromised or abandoned in order to appeal to a broader base of voters or maintain political power.

Political parties may also face pressure from various interest groups, such as business interests or labor unions, which may have their own agendas that conflict with the party’s ideology. These interest groups may have significant financial resources and political influence, and as a result, political parties may be tempted to compromise on their principles in order to secure their support.

Another factor that can contribute to a party’s failure to follow its ideology is the influence of individual politicians or factions within the party. Individual politicians may have their own personal ambitions or interests that conflict with the party’s ideology, and they may use their position of power within the party to push for policies or decisions that are not consistent with the party’s values.

Finally, political parties may face pressure from external forces, such as global economic trends or international relations, that may require them to adjust their policies and priorities in order to respond to changing circumstances. In such cases, political parties may find it difficult to maintain a consistent ideological stance, as they must adapt to changing circumstances and balance competing interests and priorities.