In 2016 it was used to target these specific types of people with outrage. Get them riled up against their opponents and make them more likely to vote for your

In 2016 it was used to target these specific types of people with outrage. Get them riled up against their opponents and make them more likely to vote for your candidate or issues and more likely to spread your propaganda for you. AFAIK you absolutely can target (or could target) groups of people based on very specific criteria.