Sure, but the NEP was producing more grain than Stalin's collectivization ultimately did, so it was possible to run the 5 year plan without collectivization and de-kulakization and get an even better result. Remember cash that was used for industrialization was raised by exporting grains, production of which collapsed because of collectivization and de-kulakization, which meant that the exporting still happened, but the people were left to starve when there wasn't enough food being produced to also feed the people. You see overly fixation on the industrialization part and ignoring what the NEP actually was.
You're relying on Soviet propaganda about how bad the Czarist period actually was. It wasn't great, but given the development levels of Russia that is to be expected. Even with WW1 and the RCW there is no reason for Soviet policies to have slaughtered that many people other than problems inherent to the people who ran the early USSR.
You should check out this book:
Amazon product ASIN 1634241231
It covers how the US banking interests were financing Soviet (and earlier liberal) efforts to oust the Czar so as to gain control over the vast raw material wealth of the country, which meant the Anglophone world ended up getting propagandized about how bad the Czar was to help the 'cause'.