Jim,
Conquest had no basis for saying this -

Of course he had, and if you look references are given.

Nowhere has it been shown that Stalin's "plan" was to wipe out so many people - the plan was to enforce collectivisation on The Ukraine.

There is your totally unsupported assertion again.
Find a single historian who believes it.
I have quoted several who acknowledge and accept that the famine was deliberate, and created to rid Stalin of a people, the Ukrainian (and other) peasant farmers.