Perhaps multiple reasons:
1) If they don’t, the White House will revoke their Obamacare waiver
2) They are the “bread”, as in “give them bread and circuses”. They are a huge provider of food, and the Ruling Elite needs to control them.
3) A huge part of their demographic market are African-Americans. ‘Nuff said.
4) If they don’t, the White House will turn up the regulatory heat - OSHA, EPA, ADA, SEC, IRS.
5) If they don’t, MCD could find it difficult to get financing from the banks that the Ruling Elite control.
6) They are a perfect employer for the Ruling Elite to create subsistence level jobs, with very few proportional middle-class jobs. That is the goal - eliminate the middle class.
McDonlds's is/was "too big to fail," which appears to be a corporate/government/oligarchic euphemism for being terminally ill.
Mr. niteowl77