ROTTERDAM, Netherlands (AP) — For a small nation that has grown hugely wealthy thanks to centuries of doing business far and wide, the political mood in the Netherlands has turned surprisingly inward. Wilders' Party for Freedom is a serious contender to win the popular vote, with most polls a month out from the election showing it ahead of all other parties. Despite his popularity, Wilders will struggle to find coalition partners among mainstream parties, which shun him and his strident anti-Islam, anti-EU rhetoric. [...] again, few observers predicted last year that Britain would vote to become the first country to leave the EU, so the worries are real about the possible effects of a Nexit — or a further disintegration of European unity driven by the rise of nationalist populism throughout the continent. Port of Rotterdam corporate strategist Michiel Nijdam believed a Dutch exit from the EU seemed unlikely, though not impossible. "Because we are so dependent on our trade with other countries that it would clearly hurt us so much that I don't think it's likely," he said. A scenario in which the bloc disintegrates amid a messy divorce from Britain and growing skepticism about Europe among remaining member states doesn't look pretty for the Netherlands or Rotterdam.