I don't think anyone here has been guilty of being "determined to maintain the human transport theory" if by that is meant "determined to maintain it happened". All I've seen is people saying it remains a feasible theory so far.

The evidence for small megaliths being portable is overwhelming. Not sure why you feel you haven't seen any. How about the fact that huge megaliths are at Stonehenge, that's "evidence" of microlithic portability ain't it?