We should practice "containment". In the 20th century, we contained communism. At every opportunity we opposed the formation of communist governments. We weren't succesful in every country, but in the end we saw the death of communism in the USSR.
In the 21st century we should contain socialism. At every opportunity we should oppose socialists and encourage individualism and freedoms. With that and patience, we should see the failure of socialism.
RIP: