No conspiracy is required. It works the same way holocaust denial does. Any individual person who support socialism is (via selection bias) incredibly likely to

No conspiracy is required. It works the same way holocaust denial does. Any individual person who support socialism is (via selection bias) incredibly likely to be a denier of the failures and humanitarian atrocities of 20th century socialism. If enough people espouse these revisionist opinions, you get to point where you can cast doubt over the facts of history amongst the general population. The only difference between holocaust deniers and socialist revisionists is that there's not enough people who hold holocaust denial views for them to be taken seriously by ordinary people. Depending on what polls you look at, about 40% of Americans think socialism is a good thing, and about half of the population would vote for a socialist president. So clearly your estimation of socialist influence is very understated.