No, they are using the trope of modern communists being horny-brained and only capable of thinking about sex while making everything sexual. The sign is a double entendre of the person being horny for someone “coming” to/for them

Wait, I thought it was supposed to be misogynistic? I thought that was a bit of a stretch but you can't be serious - I don't understand how you could draw the conclusion that the figure is portrayed as being "horny". You're reading into depth that this MS Paint stick figure cartoon simply does not have.