

Only 30 people actually died as a direct result of the Chernobyl disaster. It’s very hard to know how much indirect deaths however. Or the overall impact on health for people in Europe. Estimations range from 4000 (WHO) up to 16000. No idea what OPs numbers include or don’t include.

Even if it were all above board, it’s just gambling and should be heavily restricted just as all other forms of betting.