If they're willing to let people work full time then they should be willing to pay full time wages
- what the hell is a 'full time wage'? I can come up with jobs all the time. As Louis Black said: I could hire a twenty year old model looking woman to wash my balls for me all the time. I am walking and she is scrubbing, nothing sexual (supposedly). It could be a 16 hour a day job for her, why not? However I am not able to hire anybody for that job at the price that I am willing to pay for it (let's say I would pay 1 dollar an hour for that service). No 20 y.o. model looking woman would take the job and that's how the market works: both sides need to agree, it takes 2 to tango (and 2 to wash balls, one with balls and one with hands).
If nobody takes that job that's the solution that you are looking for:
If someone's working 40 hours per week then they shouldn't be sleeping in their car out of exhaustion because they're struggling to pay their bills. Nobody who works full time should live in poverty.
- you are saying nobody should be..... OK, that's what you say. However if somebody wants to do the job of washing my balls and they know that the job pays $1 an hour, you would say: it should be illegal for me to offer the job but more importantly for the other person to take the job.
So I can live without that constant ball washing, however for somebody that could be just what they need for X number of reasons, you are not making my life that much worse, you are standing in the way of the people who are interested/willing/need that job from getting it.