Why is there widespread discrimination against Gypsies in Europe?

First, the stereotype effect of human nature.

Secondly, because gypsies migrated all over Europe, they gradually flourished, and sometimes they were forced to engage in industries such as stealing and divination, and got nothing, so they were associated with diseases and disasters in Europe, thus being hostile. Floating population is the most difficult to manage, and wherever they go, it often leads to social unrest. Gypsies are a people who have never settled down, and European rulers regard them as a plague.

Third, the way of life of Gypsies is incompatible with other ethnic groups in Europe.