It will definitely happen in the US even if it takes longer than Europe for example. Older generations aren't dumb. They don't want their children and their grandchildren out of money. If there are really no jobs they will vote for UBI like everyone else. Politicians who embrace these changes will be enormously popular (most of them already believe in the same ideology guiding the WEF and their preparation for the technological advancements that are inevitable). Those who don't currently support these developments will change their views according to what will get them elected or they will become politically irrelevant as these changes will effect everyone from left to right.