I would suggest actually looking into the traffic law - MOST - places explicitly state that bicycles should (with very few very specific exceptions) remain to the right side of the lane.
The Cyclist community disagree's with this in most places I've seen it mentioned but that doesn't change what the laws are. I'm not arguing safety I'm simply stating what is written. Obviously this varies from area to area but again suggest looking up what it actually states rather than your impression of it.
As far as cars passing you - if you are to the right side of the lane as most traffic laws require then cars should be able to easily pass you on the left without incident.
In my opinion a cyclist should not be purposely using an entire lane and backing up traffic for faster moving vehicles (forcing them to pass as they would a slower car which can cause issues during high traffic periods) when simply moving to the right is all that is required. Using the entire lane as a matter of principle increases your danger by provoking aggressive driving / road rage.