Essentially options for good (but not great) sr engineers are
1. Get 120k salary in Europe (on higher end)
2. 500k at FAANG in US (salary + RSU)
3. ~200k at startup in US + lottery tickets
Both option 2 and 3 strictly beat option 1 (especially after taxes) so European should get off the high horse and recognize reality that they are poor and exploited by companies and government.