i need to stop argue with liberals

"breaking new liberals are ignorant" i know this isnt new to us but i couldnt resist and entered a political discord server and debated with someone on why Lenin wasnt anti-semite? and why Marx wasnt anti-semite either especially considering how his father is jewish himself...and then the guy switched to how the soviet union was anti-semitic because they seized synagogues belongings? and i tried to explain why this wasnt directed at jews but rather religious institutions as a whole because of the power they held in the russian empire....he also used the "muh authoritarianism, vanguard party authoritarian" which ofcourse he would mention not knowing that reactionary movements would have eleminated the revolutionary progress made if it werent for the vanguard party protecting it. He then proceeded to compare the vanguard party to israel because i said the vanguard party and with it the people need to hold all power to protect the revolution which he translated into "yuh but if you are anti-israel that means that israel should also protect itself from the palestinians for its survival" (him being pro-israel). Funny thing is that he considered himself a socialist eventhough he admitted to not like marx and called himself a pre-marxist socialist? He also admitted to never have read theory and this is the part that annoys me the most: He called himself a socialist.....

Everytime i try to be reasonable with these people they pull out the most randome take out of their asses and i try to educate them but they mock me. All i can hope for is that they will become class-conscious and be enlightened about the all the trash propaganda they have been fed...but aslong as this isnt the case if fear they will need to face the wall if they keep being the enemies of the people