The only line flat enough for industry to not come back asking for more cuts will be the flat strike through line on any taxes that they pay.

I would like to introduce a concept - negative taxation - you (the taxpayer) pay us a royalty for gracing you with our presence.

you're describing subsidies

I think we can presume they know that and are just continuing the fun slightly snarky framing. There are also minor differences in implementation between negative taxes (credits beyond obligations which can happen in the US though they're very, very rare) and subsidies.