They believe in equal slices.

I found the poster in a Google image search for “propaganda posters”. The hard part is finding a poster that lends itself to replacing the text by way of its layout. When text covers any part of the image, you’re pretty much stuck with that text unless you are a badass.
I used the clone tool and healer tools in Gimp to clean out the original text. Then I took the stencil font for the first words, and this Soviet font for “communists”. I used the dropper tool to select which base color red and then used the burn tool with super high jitter to give the red text a more marbled look. Then a little bit of super low opacity blur tool on the black text and it looked like that. The whole process took about an hour since I had no idea what I was doing initially.