No, it's not right to declare expert opinion to be the same as simple opinion, fad, or partisan propaganda. It is right to expect experts to change their guidan

No, it's not right to declare expert opinion to be the same as simple opinion, fad, or partisan propaganda. It is right to expect experts to change their guidance as they gain greater understanding of the objective truth of their fields. Nor is it right to equivalate different fields of study, such as nutrition and economics. Some fields of study are much more stable than others due to the ease of proper sampling, hypothesis testing, and experiment replication. If you want to try to discredit economic experts, then focus on their failures, not the failures of other fields. Last but not least, your claim that it is easier to corrupt and politicize centralized power is meaningless. Power only exists when it is centralized. Decentralization simply means creating multiple smaller groups of centralized power. I think that the benefits of centralization, such as standardization of norms and forced unity, have proven far more beneficial to society as a whole than any increased chance of corruption.