Yes.... the entire situation has a long sordid history. But Hungary is not the only NATO EU member who has placed restrictions on Soros' activities which were undermining the country.
I will note that as of 2019 - Soros' Open Society Foundation has been banned from 6 countries; Philippines, Hungary, Russia, Turkey, Pakistan, and Poland.
You don't see the Gates Foundation being tossed out of countries.
There really are times your blindness or indifference to authoritarianism is hard to fathom.
If those countries (if, not checked) don't like him, he is probably a living Saint doing great works.