I do that sometimes, typically when the capitalist gets preachy and tries to moralize at me / scold me for supporting communism. It is deeply frustrating for me to have capitalists try to condescend to me morally, so I try to bring up capitalist wrongdoings to knock them off their high horse. Which never works, because they just pay lip service to capitalist countries wrongdoing and double down on still somehow being better (typically some dog-shit about "but their own people! We do it to foreigners, who don't count!").