Leftists are only parasitic more than they are cowards. But cowardice being their second most defining trait, you must understand it to understand when they are attacking you. They mask it in fake kindness while also cowardly hiding behind noble and politically correct purposes, so that when you accuse them of laziness, parasitism, and just plain thievery they can quickly hide behind their noble cause and call you names.
This post delves into this phenomenon more than the above, but reading it would do a lot to advance conservative and libertarian aims to defeat the left than merely, and chicken-shittily say, "No no no!!! I'm not racist!!!"