While the situation in Europe is, of course, diverse, the culture in Germany (which is often looked to as a thought leader in the eu) is strictly to disallow and discredit any substantial criticism of the „only democracy in the Middle East“. Usually under a blanket accusation of antisemitism. Especially due to germanys history, this claim can be brought forward and be spread in a news cycle without substantive scrutiny. The fact that conflating the State of Israel with jewish people could be met with the same accusation is largely ignored.

If you are interested in the topic on a high level I suggest the following starting points

United Nations: „UN experts urge Germany to halt criminalisation and police violence against Palestinian solidarity activism“ as well as numerous statements by amnesty international or the Wikipedia Section „Restrictions on Pro-Palestinian expression“ of the article „Censorship in Germany“