Interestingly enough the house single-payer bill H.R. 676 [1] (and supposedly the Senate bill S. 1804, although I couldn't find any specific language on it) has provisions for "retraining, job placement and employment transition" to account for any "jobs eliminated due to reduced clerical and administrative work".
[1] https://www.congress.gov/bill/115th-congress/house-bill/676