I do not think that it makes sense to call the Communist governments as "left".
Almost all Communist governments did not obtain the power by a political fight between "right" and "left", but by being installed in power by foreign invaders (in most cases by Russians).
Typically the first action of all Communist governments has been to imprison and/or kill all "leftist" politicians of that country, this having a higher priority than any actions taken against "right-wing" politicians.
Even in Russia, the Bolsheviks and Lenin obtained the power only due to the support of the German war enemies, which they paid back by removing Russia from the war.
The Communists that have been in power have never been any kind of "right" or "left" politicians, they have been just a class of hereditary parasites that have exploited those societies, by controlling everything that was of any value in that country, while claiming that they do this for the good of all people.
The Western politicians are crooks who succeed to fool the feeble minds into voting them. I contrast, the Eastern communists were just slave masters, who did not need any kind of skill, except of displaying loyalty to their immediate boss.