This is true, Hungary was the first in EU to put up wire around its border to Serbia to prevent immigration.
Frankly Eastern Europe has enough problems with it's own economic burdens - lack of capital, low productivity, low % of capable working population and significant brain drain, high corruption and low respect for property ownership, a lot of destroyed capital and outstanding obligations to existing retired people, etc. - most of which can be traced back to Communism. Also they already have problems with poor integration of Roma.
And you forget the whole Ottoman rule thing. We brunt the conquerors wrath up to Vienna and barely stopped them. Had our development extinguished for 3-5 centuries. When people in Eastern Europe see the hordes of young, fighting age passing trough they have different associations - like Devşirme
I wanted to say something about that but it's not that black and white.
For example there were/are a lot of Muslims in the Balkans after the Ottoman empire - but they are integrated within the society - some of them drink/eat pork, none of them expect gays/adulterers to be stoned etc. Just like modern Christians reject the extreme parts of their religion (eg. they mostly ignore the stuff in old testament).
I don't think "islamophobia", in the sense that you'll be ostracized for being a muslim, is more common than the rest of EU.
They against havoc, littering, blocked roads, squatted trains, destroyed property, etc. Keep in mind that people never intended to stay in any of those eastern european countries, they all were going to Germany.
Frankly Eastern Europe has enough problems with it's own economic burdens - lack of capital, low productivity, low % of capable working population and significant brain drain, high corruption and low respect for property ownership, a lot of destroyed capital and outstanding obligations to existing retired people, etc. - most of which can be traced back to Communism. Also they already have problems with poor integration of Roma.
It's easy to see why refugees are not welcome.