more miners . . . will help reduce unconfirmed transactions- especially if people are willing to accept not winning the blocks in exchange
You are incorrect. You should probably take a little bit of time and effort and learn how the bitcoin confirmation process actually works if you are going to try and make suggestions about how to improve it.
If you instantly multiply the current amount of hash power by 4 immediately after a difficulty target adjustment, it would have a VERY short term effect of reducing unconfirmed transactions for the next 3.5 days. Then the difficulty would re-adjust and the number of unconfirmed transactions would go right back to what it was.
I'm not talking about running it for profit or as a business...I'll be happy to break even
Unless you have access to the newest ASIC miners
AND cheap electricity, you will probably LOSE MONEY mining. You will not "break even". The amount you will lose will depend on how much mining you chose to do (more mining results in losing more money).
We wouldn't have the high fee stuck
The fee would not change at all. It would have ZERO effect on the fee.