Do people who choose and stick to one of the political ideologies serve national interests or their own ideologies? I am particularly talking about people who are extremely critical of the opposite opinions and/or choose to ignore all other opinions. Is it possible to find optimal solutions for all ()/national problems withing one ideology? Or the solutions will be better if one work from scratch without any ideology and identifies the problem and uses unbiased criteria in choosing the solutions? This is one of the thing I never understood about politics - it looks like that it is played with overwhelming bias and people seem to value their ideologies more than addressing the problems.