Hey Sven! Yes, it's an impossible situation to be a tech recruiter -- good engineers won't put up with the crap to join teams full of "LETS GO TO THE OFFICE FOR COLLABORATION" mediocre executives.
I'll quote Ludicity: "Every so often, some dickhead says something like 'Maybe we should revoke the engineering team's remote work privile - whoa, wait, why did all the best engineers leave?'."
Unfortunately, hiring managers tend to be completely ignorant of software engineering, programming, coding, evaluating candidates, etc.
After all, if they were any good at all of those topics, they wouldn't need a tech recruiter, right?
So you might as well just stick to finding people desperate for work due to their visa situation or whatever and just give up on finding "qualified" people who want to actually "commute to the office because I collaborate better with constant interruptions from small little people.