Around 6,000 people in Vienna took part in a demonstration with many chanting: 'Welcome to Refugees, No to Fortress Europe'.
Irem Aktas was reportedly removed from her role in the AKP party after making the comments on social media.
Migrants arriving in Greece will be sent back to Turkey if they do not apply for asylum.
Issues include Cyprus's veto on Turkish integration with the EU and preconditions for visa-free travel.
But Syrian government and regional powers refuse to recognise the declaration.
The Prime Minister's comments come as 27 EU heads of state are meeting in Brussels.
Group claims it did not intend to target civilians.
EU leaders will meet in Brussels to seal a deal for Turkey to help control the flow of migrants into Greece.
TAK rebels blamed for twin attacks in Turkish capital on military and civilian targets.
Turkish authorities have only increased confusion by imposing a media black-out on the attacks.
Following the attack, President Recep Tayyip Erdogan has vowed to bring 'terrorism to its knees'.
A car bomb that tore through a crowded transport hub killed 34 and wounded at least 125 more.
At least 32 people have died and more than 100 have been injured.
More than 100 people injured after a car packed full of explosives detonated close to Kizilay square.
Early reports suggest there could be casualties at the Güvenpark monument in the centre of the city
Emine Erdogan said harems were important for "preparing women for life".
LG's side QMemo+ has been renamed to Capture+ and the LG Bridge to LG AirDrive.
Turkish state is seeking to silence critics with spurious allegations of terrorism
Turkey is home to 2.6million refugees that face exploitation and poverty
Editor of German publication severs link with government-controlled Turkish edition.
David Cameron called the deal a 'basis for a breakthrough' that could end people smuggling.
The Turkish leader will feel he can act with impunity as Brussels rolls out the red carpet.