My 2 cents:
If cleared approach and lost comms, couldn't reach the previous controller either, I'd land if I broke cloud and runway clear. Re-entering the clag, figuring out the miss, transition over to another approach, NORDO, seems a lot more risky and troublesome for the controller than landing. Clear day, plenty of fuel, mebbe go-around and have someone wake up the controller, BUT it seems too much like I'm up there flying around, so the ATCOs have something to do. Planes land all the time in my experience sans clearance because there isn't any controllers.
For the sake of argument, controlled field, no answer from the tower, your radios are working based on previous use--would you who say DO NOT land without clearance:
A) Circle the field until fuel exhaustion
B) Divert, VMC or IMC
C) Land and walk over to the tower and find out what's up with them
I'm for C
GF