It is a reasonable assumption to say that most people, even those not familiar with the play Henry VI, would agree with this line by Shakespeare: “The first thing we do, let’s kill all the lawyers.”
There are a lot of reasons to hate lawyers. One is that we write long-winded sentences like the one above. Then there is the pretty big one, that lawyers will represent people wanting to sue you, which is never nice. On top of which, they will in all likelihood be mean and nitpicky when doing so.
You may also hate them because of their insistence to be pedantic, insufferable know-it-alls, even if you are just discussing the merits of rajma chawal. Or you may dislike their penchant for, inter alia, unnecessarily shoehorning Latin maxims and other jargon into their speech.