Trade etiquitte question

I was offered the following trade in a 10-team full pt ppr league:

Cooks, Edelman, Bell


D. Thomas, D. Lewis

I’m the Thomas, Lewis owner.

The owner that offered the trade has already started mass drama with the commish of the league because people keep vetoing his trade offers. He’s threatened to quit the league and wants his money back. I’m not even sure this is a serious offer or if he’s just being a jackass. This trade clearly (I think) benefits me a lot and I’d love to do it, but I worry that the league will vote to reject it.

Should I accept anyways and see what happens?