The thing is, and sorry for being blunt, for the misinformed idiots who are not acting in bad faith, socialism for them means “when government does stuff”. Since Nazism is “government doing stuff”, the misinformed idiots think it’s socialism. What these folks mean is collectivism which is conflated with socialism. Socialism has a more specific meaning than just government doing stuff. Socialism values welfare for both the group and individuals, and worker’s rights. Collectivism is prioritising the group at all cost by abandoning personal freedom.