Welfare states don't just shower people in money as soon as they are unemployed, you need to be constantly on the look out for new jobs and proof that you are actually doing this. Integration similarly has their own strings, i know for a fact on how it works in Finland and the amount of support refugees get to combat segregation more than generous.
Small groups are assigned personal caretakers that handle nearly all of their daily needs, be it transportation or translation and other mundane stuff like shopping with them in case they feel too scared to do it. At the same time they are obligated to go through a condensed version of our primary school that teaches language, mathematics and other basic skills that are legally required of all Finnish citizens. On top of that there is effort to arrange state-sponsored jobs for them. If this does not stop segregation then i don't know what does.
Now the reason why people are pissed at this and the right-wing is getting support is because while there is huge effort for integration, we are facing constant cuts on our own welfare programs and a failing economy. The left offers no solutions besides austerity that will only deepen the problem while the right sings fairytales of leaving the Eurozone.
tl;dr: Economy is in shit and this is reflected in welfare policies and unemployment, hence we get right-wing rhetoric. Go figure. The idea that welfare is a root cause instead of economic prosperity is a myopic view.
Increasingly it seems like there's no alternative to a revolutionary left, even if an actual revolution isn't going to break out. Greece elected the "Coalition of the Radical Left" (SYRIZA) party to reject liberal austerity. But even this "radical" coalition was forced by German/French banks to make even deeper cuts. This was a punishment to show Left parties in Spain and elsewhere that there's no alternative to austerity.
The choice was between defaulting on the debt, withdrawing from the Eurozone, and essentially starting a domestic economy from scratch. Or capitulate to the terms of austerity and continue receiving an unsustainable bailout from the European banks.
SYRIZA called for a public referendum on whether to accept the terms, with the understanding that a 'No' vote meant exit from the Eurozone. 61% voted 'Oxi' (no).
However, the following week, SYRIZA kicked out their leftist finance minister Yannis Varoufakis. The party purged several high ranking advocates of exit, and the parliament voted to accept the austerity terms.
A year later, the Greek economy is in shambles, and they are forced to make even deeper cuts.
This is how far-right neonazis (Golden Dawn) could come to power. Greece has tried everything else. The liberals were rejected for their austerity policies. The "radical" left was unable to make a break with austerity. No revolutionary socialist party that would carry through exit is large enough to take power. European liberals have made reform impossible in Greece. So the far right is literally the only option remaining.