Consequently, nothing guarantees that this decrease will continue: as a matter of fact, inequalities have grown sharply in the USA for the last 30 years, falling back to their 1930s level.
This decrease will continue. Nothing guarantees this. This is consequently. Inequalities have grown sharply in the USA for the last 30 years. This was as a matter of fact. Inequalities were falling back to their 1930s level. This was as a matter of fact.