[Verginius Rufus]

They need to read Matthew 20, where the workers agree to work all day in a vineyard for a penny. When the workers later complain about getting only a penny for working all day when other workers who worked only an hour also get a penny, the landowner defends his action as just.

So to the extent that Jesus expressed an opinion on this issue, it is that a penny a day is the right minimum wage.

(Of course this is the King James translation--the Greek text has "denarius" which would be worth more than a penny in today's money.)

[Popman]

I’m pretty sure the participants protesting from the church could not find Matthew 20 in the Bible if their soul depended on it...

They probably know the union rules by the letter...