The influence Ankara has over these people is troubling and with the internet nowadays, it's hard to stop them from being influenced. Personally I don't see these people protesting my government (and to some extent the sovereignty of this country) as my fellow countrymen. They are, however, still Dutch citizens and because they're in the NEtherlands they're protected by our constitution, which means that we can't just deport them to where their loyalties lie, which is disappointing in this case but really its'good we can't just kick out anyone the government doesn't like.
And seriously, it was like 300 people. Who gives a shit, really?