That question is a prime example of a bad question for surveying anything. "Too many" is a relative question but it does not say what we should relate it to. I think the amount of people coming here are overwhelming our structures we have for integration. But the solution in my mind can't be to stop people from coming here by force. Either we invest a lot more into integration so we stop being overwhelmed or we invest more into developing peace and prosperity outside of Europe. Answering this question with yes will lump me in with people saying yes because they just flat out don't want outsiders in their country.
Were the questions phased universally across nations?
Without these questions answered, it's hard to make out what to think about this statistic.
As the saying goes: "lies, damned lies, and statistics".
As it is, It would have been more useful if they allowed respondents a selection of choices. Such as: Don't Know/Care, Neutral, About Right and Not Enough.
Maybe a meta study would have made a better subject for an article.
And this is why Europe faces a demographic calamity. This is also reason number 928,354,191 for the necessary marginalizing of the republican traitor filth.
But Europeans are better than Americans. There are so many more white people, and they're really sorry for all the colonialism (but thank you to not ask for all the stolen artifacts back).