It's about illegal migrants whom US President Trump has been trying to remove from the country with the same "success" from the first days of being in the White House as the EU has deported its "illegals"
Yes, there is a lot of Euroscepticism in Austria and it is totally logical. There is a great dissatisfaction since Austria is now one of the two countries, who actually inhabits the illegal immigrants since the start of the crisis.
Christmas is a time of traditions. If you have found time in the rush before Christmas to decorate a tree, you are sharing in a relatively new tradition.