First,
Second, let's pretend you're not making this up.
Let's assume they keep all $12 million in profit as income and choose not to reinvest any of it into expanding or improving the business.
Let's also assume they don't deduct anything.
They would still only pay the full 82% on dollars $10,000,001 to $12,000,000.
So their tax rate would rise from (I assume) 49% to 82% on $2M of their income. If remaining tax brackets stay the same, their take home income goes down by $660,000. That's not an insignificant change, but it's also not any more uncommon than the swings business owners or CEO's see in a down sales year.
So if they're really going to cut employee pay over their take-home pay of around $7 million going down by less than 10%, then you work for ty people and you should find a new job.
Anyway, I already said in this thread that I don't agree with going to 70% this soon because it's too drastic a swing for some people and it might force them to move. But LOL at calling a $10 million+ profit company a "Ma and Pa" business. Less than 10% of small businesses even bring in over $1 million (in annual sales, not even profit).