Are you a paid GA user? If that's the case, you can ingest your data into BigQuery. Otherwise; you can't export the raw data, the only option is to export the summary data (number of unique users per hour, day, week etc.) from GA to your Redshift cluster via an ETL tool such as Segment.
We are not a paid user. I believe that's around 200k a year? That's a good point, I haven't looked into paid vs unpaid functionality when it comes to data export yet.
