I agree with your general point as to why some people are against science, but using an example from before the second world war to call out the left specifically is pretty off-base. An example from 1935-1940 in Soviet Russia has very little relevance to 2020 on an English-speaking forum.
Both sides of the spectrum have anti-scientific factions which are current: on the left there are deniers of gender differences and people who overstate the role of genetics in mental illness, on the right there are climate denyers, evolution deniers, people who think crime is prevented by more aggressive policing. Anti-vaxxers are fairly uniformly distributed across the political spectrum.
Both sides of the spectrum have anti-scientific factions which are current: on the left there are deniers of gender differences and people who overstate the role of genetics in mental illness, on the right there are climate denyers, evolution deniers, people who think crime is prevented by more aggressive policing. Anti-vaxxers are fairly uniformly distributed across the political spectrum.