A lot of Europe did so and for this exact purpose. Immigrants are net contributors of tax money and help a lot with demographics. Now however European countries have a sizable portion of their countries as immigrants and it turns out a lot of people feel like their culture is getting lost.

Add that up with corruption is more out in the open, austerity after the 2008 financial crisis generally failed as a policy and people are very prone to believe "Immigrants are to blame" and vote for right wing parties since they run on an anti-establishment platform.

The left generally believes that we need more immigrants and more social programs and so on but there has been a massive crusade on tax rates which hinders the governments ability to pay for them.

This is all coming together now and the far right narrative is being given a chance in Europe with their anti-immigration stance.

In my opinion this is basically the centre-right trying to get votes by cutting taxes, end up taking on massive debt or gutting quality of life social programs so the only way forward is to fuck over minorities and making the most vulnerable people suffer for the greater good. But tax the well-off, rich, wealth, land, capital gains, profits? Nooooo, can't do that because they fund the political parties. 🙃