Who is "expelled" for hate speech? Where to?

In any case, there's a difference between political prosecution and some minor international differences of what's legal and what's not. If it were that easy to get asylum, people would probably prefer it to participating in the Green Card Lottery or H1B Visa process.

Freedom of speech also isn't the only category of "political" crimes. Many Germans consider the (partial) lack of speed limits as a defining characteristic of freedom, yet Americans can't get asylum at 60mph just because of it. On a more serious note, there are a great many political freedoms that some if not all European countries are better at guaranteeing than the US. Elections are administered fair and it's generally easy to vote even in poor neighbourhoods; No death penalty; Public defenders that actually have time to defend you, etc. Heck, the racial disparities in the US criminal justice system border on wilful prosecution of a minority.

> Also I think all the people expelled for hate speech in EU could gain asylum in US.

Who was expelled from the EU for hate speech?

I guess you could make a case that Germany prosecutes Neo-Nazis, preventing them from forming parties that overtly follow their ideology, outlawing their symbols and restricting their freedom of speech. But that still doesn't come close to rounding them up and imprisoning them on ideology alone. They are not expelled, but they could flee from prosecution and seek asylum.