Your calculus is far far from reality so your further reasoning is therefore flawed from the very start. 4-4.5k EUR is probably more realistic.

Moreover, property prices around EU are generally speaking anywhere from 3k EUR to 15k EUR per sqm. For a 100sqm home that's 300k EUR for the cheapest one, 700-800k EUR as a median and more expensive ones over a 1M EUR. Even with the 90-th percentile salary such as 4k EUR per month (after tax), how exactly do you envision buying a home with that sort of prices?

Software engineers are being grossly underpaid in Europe and all this recurring bullshit around housing prices, living costs etc. is just a bullshit that capitalist companies will spread to convince people such as yourself to start considering your colleagues as a "threat" and not just human beings who want to be paid what they are deserved.

My purchasing power, even with the 90-th percentile salary in EU, is _nowhere_ near the purchasing power I'd have with the same skills I have if I had lived in the US and that's where all the discussion can stop. If we take some of the other European countries as an example that gap is going to be even much larger. Purchasing power coefficients are a real thing you know.