Sky1981
Fending off the urge
I was thinking it might actually be lucky that Omtzigt created his new party now. If Wilders is in any coalition, it will include the NSC, and the one thing Omtzigt will absolutely demand is sound processes and legitimate decisions. That might be an important factor in preventing Wilders from going nuts on some of his worst Islamophobic ant anti-immigration ideas. I don't think the VVD would do as much to stop that, and without Omtzigt, probably the BBB would have had those 20 seats, and they wouldn't have had the same scruples either (plus they'd deliver a lot of seats in the senate).
Trying to find positives!
That doesn't actually apply to the Netherlands, cause there's still a pretty sizeable centre. NSC and CDA are pretty centrist parties (leaning right a little), as is D66 (maybe leaning a little more left), PvdA/GroenLinks is really just centre left, and the VVD under Rutte was pretty centre right (but not as much right now). Even the BBB isn't a radical party; outside their stronger points on nitrogen emissions management, they're a lot like the CDA and NSC; and on the left you've got parties like Volt and PvdD that aren't quite that much out there either. You could disagree on how far left or right from the centre these parties are exactly, but they are certainly not the product of a polarized society. They rather reflect the splintering of the Dutch electorate, where you got parties for a ton of specific issues now (and who largely just copy other parties beyond that). You could talk about polarization for Wilders and the SP maybe, or for ChristenUnie and the SGP in a religious sense (and Denk?), but their further rightist and leftist positions are far older than the current climate of polarization - of which Baudet's FvD is really the main exponent in the Netherlands, and he's commonly seen as a nutter.
That's not to say that Dutch society isn't polarized at all, but I don't think it's reflected all that much in its political landscape.
Thanks for the insight