Lots of people. We are a money and wage based economy. If you goal is to end that economy, then wages and skills will have little or know value, but that is not the world we actually live in. Here is a glimpse at the restaurant industry and franchise foods:
2.4-3% profit margin for restaurants
$50,000 average annual profit for restaurant franchises
14,000 US McDs
McDs needs 15-25 employees (all shifts) depending upon the store volume, size and hours. 20 average?
McDs franchise: $2.5-3 million in revenue; with profits between $500,000 and $1 million
Current hourly wage: $15/hr? Wage at $100,000 per year: $50/hr equals a $35/hr increase or $70,000. plus taxes and benefits (20%) +$14,000 equals $84,000 in increased payroll per employee. For 20 employees that is $1.68 million dollars.
Subway has more stores than McDs, but far less revenue per store.
Subway revenue averages $480,000 per store
7 employees per store on average.
Doing the same math as for McDs: the 7 employees would need a payroll increase of 7 x $84,000 or $588,000. They would have to more than double their revenue just to make payroll.
So the fastest way to put the restaurant industry out of business would be your plan for wages. The industry employs around 11 million+ generally low skilled people. Restaurants are notoriously difficult to operate and typically fail. Your "$100,000 for all!" plan just makes it impossible unless you expect folks to pay $30 for a big Mac. As worker friendly as your idea is, it makes no sense if one wants restaurants to exist.