This is a problematic study in several ways.
Here is the question asked by Monmouth U. researchers:
"If you were free to do so, would you like to go and settle in another country, or not?"
"If you were free to do so" - what does that mean? The presupposition here implies that each of the 900+ respondents is NOT free to do so, perhaps forbidden by our government... or some situation... Of course, this is not East Germany, and we are in fact "free" to do so. The question confuses from the git go. Respondents, some of whom understand that there is no Iron Curtain holding them back, and others of who might accept the question's assumption, might approach this question from wildly different angles. Hypothetical questions like this tend to get a lot of non-serious responses. Someone who has never thought of leaving might say anything. What would I do with $1,000,000,000? I might say anything, but I bet what I spend it on will be hugely different from the initial thoughts I provided to the survey-taker on the phone.
"go and settle in another country"
And what does that mean? Temporarily? Forever? A country of my choice? ANY other country?
Then there's the bigger problem... They compare this year's results with those of past decades... but WHAT QUESTION did the previous surveys ask? Bet they were all worded very differently.
Also it's a small world today. We should expect very few "yes" answers from surveys from the past 50-60 decades, especially the early periods when air travel was a mere fraction of what it is today, and periods when hardly anyone could afford it. Inflation in the late 70's was eating everyone's lunch.
Assigning this year's results to politics alone is ridiculous. That said, I truly hope anyone desperate to leave now, or during some future political period, understands they are free to do so and finds the means as well. There's no sense in being miserable here if you think you can bring the party somewhere else.