Why is frictional unemployment of relatively little concern to economists or government officials

Frictional unemployment is of relatively little concern for economists and government officials since it is a normal movement in the market labor. It might be constant because employees are searching for better work benefits for their employers. The nationwide development of a computerized job panel inventory of all the employment openings would probably reduce the frictional unemployment.

less available tax revenue

this basically means that when they get money from taxes wirth having a lower gdp they get less then what others have with a higher gdp