Europe is not a country. Europe is made up of 49 countries, 28 of which organised in the European Union. Each country has its own set of laws. It would be greatly helpful if you were precise which country/countries in Europe are going down the gutter, and where we can't speak our minds for fear of retribution. It might surprise you to learn that not all European countries have hate speech laws.
Go to Poland or Hungary and you won't need to fear prosecution, as the state leaders are firmly on your side in your "concerns".
Do you have any idea of the kind of things people said "expressing concern" that they got fined for? Those are sentences such as "We can open Auschwitz anytime", "Drown them all" (including open cheering for each refugee boat capsizing in the Mediterranean), "Gas them", sharing pictures of the Holocaust and similar (ironically, many of these people also tend to deny the Holocaust ever happened). Those are things you get fined for. Mostly, you have to pay several hundred up to a few thousand Euros. Hardly anyone goes to prison for it.
Yet, voicing concern is not stifled. For about two years people took to the streets voicing their concern each week. You probably heard about this Pegida movement. It was even adopted in England, if not other countries. Again a striking irony: Speakers saying through loudspeakers at protest marches protected by police, paid for by the taxpayers, "We can't speak our minds anymore. Free speech is being taken from us!" Members of the AFD party are on TV each week, agitating against refugees, at the same time complaining they can't speak freely, and TV is not giving them airtime (while sitting in a talkshow of a public TV station).
Germany does have hate speech laws. The crime is called "
Volksverhetzung". It's very clearly defined, hasn't turned into a slippery slope, and is a result of our country's history (sorry, can't get around the reductio ad Hitlerum in this country).
Finally, the Middle Easterners that people are so concerned about are not immigrants, they are refugees. Plain and simple. Trust me, I'm working with them. In Germany and in Iraq. They are not coming for the nice summers. And certainly not for "our women". The concerns people are being fined for are, as I mentioned above, not worries about "How do we accommodate all of them?" or similar, they are a mixture of xenophobia and islamophobia, fear of social decline, opportunism by the ultra-right etc. There are many ways to express these concerns which I find greatly concerning, but which are still within their legal rights to utter.