Is the "gassing ALL kikes" mentality rational?

if there are physical differences in the brain that are supposedly indicators of leftist thinking then how the fuck does the redpill work?

Does someone who starts out as a modern pozzed leftist but become a staunch pro-white race realist right winger who hates niggers after a few years spent on Holla Forums being exposed to harsh realities and infographics and pie charts about crime by race change the physicality of their brains in the process?

this shit gets thrown around occasionally and it all seems like fucking pseudo-scientific nonsense to me