"The statistics clearly show that our fellow citizens contribute significantly to the growth of the Dutch economy and the Dutch budget. The truth is that our citizens do not take jobs from the Dutch nationals," the ambassadors said in the letter.
The letter was a diplomatic response to the decision by the Dutch Freedom Party (PVV) to launch a website called "Report Middle and Eastern Europeans", where readers can lodge complaints against eastern European migrant workers.
"Are you being bugged by middle and eastern European immigrants? Have you lost your job to a Pole, Bulgarian, Romanian or other Eastern European? Then we would like to hear from you," the website said, which also flashed Dutch news reports about rising criminality blamed on eastern European migrant workers.
"The website action, although being solely a party initiative, does not contribute to a substantive fact-based discussion on the situation of EU citizens working in the Netherlands. Rather, it encourages negative perception of a particular group of the EU citizens within the Dutch society – a perception not supported by facts. Furthermore, targeting a selected group of people living in the Netherlands is clearly discriminatory and degrading in its intention and purpose," the letter reads.
The ambassadors underlined that free movement of workers is beneficial to the Netherlands and is one of the pillars of the European Union.
"We invite the Dutch society and its political leaders to distances themselves form this deplorable initiative," the letter, signed by Bulgarian, Czech, Estonian, Latvian, Polish, Lithuanian, Romanian, Slovakian, Slovenian and Hungarian ambassadors, reads.
Meanwhile controversial leader of the Freedom Party Geert Wilders called the letter a waste of time.
"It's a waste of time," he was quoted as saying by the Dutch news agency ANP.
"Don't they have anything better to do?" he said, adding the website was not discriminatory but merely there to highlight issues around migrant labor, and complaints received by the website would be presented to the Dutch Social Affairs Minister Henk Kamp.