Nothing you said is a proof that what happened has roots in state-wide hate against particular minority. It's personal and biased.

My grandparents were stripped of all land as well and I am 100% certain it was not because of ethnicity since they were of the same as the ruling ethnic majority.

What you are explaining is probably local authorities - humans hated your relatives because of their ethnicity and that was one of the reason they got sent to Siberia. Taking land though was widespread in USSR. It was taken from ethnic Russians as well.

The fact that minorities survived and thrived on the same scale as Russians and got sent and taken land from on the same scale as Russians and got sent to Siberia on the same scale as Russians is a proof that there was no policy to destroy particular minority on a state level. It was a policy to destroy enemies of the state.