When Russian scientists were escaping the horrible realities of Putin's regime, had someone in Europe attempted to "lure" them? No, they were fired by hundreds [1] and students were not allowed anymore [2]. Not counting the immense indirect pressure like closing their bank accounts and not prolonging their existing residence documents even when they had jobs.
When Ukrainian scientists tried to escape the horrible war of aggression and cruelty that Russia brought on them, did someone try to "lure" them in? No, they had some charity help and some temporary programs, but mostly they get "emergency temporary" permits with the condition they have to go home afterwards. These temporary protection measures are now being phased out [3] and many Ukrainian scientists will be shown the door.
Now, American scientists are escaping the horrible realities of their regime. But for them, EU is much more friendlier and welcoming.
What is the difference?
[1] https://www.swissinfo.ch/eng/science/cern-to-expel-500-russi...
[2] https://t-invariant.org/2024/12/swiss-cross-on-russian-stude...
[3] https://www.icmpd.org/blog/2025/phasing-out-temporary-protec...