Perhaps it is the decades long financial criminal history? Perhaps harming millions of humans over decades, manipulating, cheating, stealing. Anyone who looks at this knows he is a crook, got away with stealing tens of millions and never did any jail time. Getting caught, paying fines, no jail time, skirting responsibility. Maybe some people choose to think that person is a crook and a thief and a scoundrel? Of all the times he got caught, how many other times did he not get caught you think? 50/50? 90/10?
Soros and Trump have a lot in common. Career criminals.