@failedLyndonLaRouchite People in theory have mixed feelings and then in practice vote against extreme right parties by very large margins. If anything the filter bubble goes the other way - there was few immigrants in politics, so politicos are missing out on big pro-immigration constituencies (and also on pro-EU ones, since intra-EU migrants don't usually go into politics either) and then don't know how to enact immigration reform that actually speaks to us.