Oh, the horrors.
How would it benefit businesses and the rich? It looks like everyone benefits but that the whole remains pretty revenue neutral without all the loopholes and 72,000,000 pages of tax code that makes all of us criminals if they want to get us.
The only thing I see remotely questionable is the 20% rate to 300K but they need to do that to keep the mess revenue neutral.
It all looks balanced to me.
As you said: “Oh the horrors.” Have you ever gotten a job from a poor person? Neither have I.