No. The US is still the best place in the world for immigrants. There's no other place in the world (barring maybe Canada) where as many people from as many other countries and ethnicities can feel welcome and a part of society. I have several friends who move to European countries (mostly Germany but also the Netherlands) and they never felt like they belonged, while in the US I feel like everyone else. What's going on right now is a temporary shift in this policy, but hopefully the pendulum will swing back.