Ah yes the good old they only have a PPL, they must be incompetent.
Riiiight, that's what was implied there?
I remind you that 200 hours is enough to be in the right hand seat of an RPT jet, so that pilot is not inexperienced.
All, you have been reminded that a 200 hour pilot has been let loose in an RPT jet. But what he/she didn't remind you off, is that the right seater is part of a crew, not flying that aircraft by themselves. Also, to say that the 200 hour pilot 'is not inexperienced' is just plain incorrect and frankly, quite stupid.
Also the main solution everyone on here seems to want to propose is class E down to 1200ft. Which is not going to protect you from that VFR pilot. In fact to an extent it may make it harder. The solution for this would be a tower. In most occasions that would be overkill.
It's clear you have a very limited understanding of how Class E works. What's most disappointing is your closed mindset and your 'who's going to pay for it' dogma.