If you think Corbyn is a communist you need to do a little studying on the difference between democratic socialism,ie that practised in scandinavian countries and the Communist states of say the Soviet Union. Youll find that corbyn is considerably to the right of the scandinavian countries, despite what certain media outlets like to portray.
As a left winger myself, by conviction, I also oppose communism but I dont fall for what the Daily Mail/Sun/Express attempts to tell me to believe