It's not so much about intelligence, but rather the fact that no single block has had majority in the last 16 years. And the green has been controlling the scale for very long with total destruction on their agenda.

Total number of asylum applications is down by a lot since the peak back in 2015, and looks like this: https://www.statista.com/statistics/523586/sweden-number-of-asylum-applications/

Most of which are rejected, this is where the problem starts as those with rejected applications don't leave voluntarily and tries to stay by committing violent crimes as advised by their lawyers: https://www.statista.com/statistics/697824/rejected-asylum-applications-in-sweden/

The whole system is very slow and heavily overloaded, very few applications are actually accepted, these typically end up on welfare: https://www.statista.com/statistics/459836/accepted-asylum-applicants-sweden/

Since the plandemic, not many camel masturbators are arriving anymore because of surrounding countries closing their borders, it proves that it's doable to stop or heavily reduce illegal immigration. Back in 2022 nearly all of them where Ukrainians: https://www.statista.com/statistics/1124336/number-of-residence-permits-granted-in-sweden-in-by-type-of-permit/