The UAW is next for layoffs and sacrifices. Contract negotiations are in the early stages for GM & Ford, which both companies have been going through heavy restructuring efforts. People knowledgeable and close to the talks have said that Ford has been pushing back onto the UAW to make an effort to become and stay "fit". Ford and GM have made a tremendous effort to downsize for the current and future market. Both companies are working on eliminating unnecessary personnel that has little impact on current decisions and events, along with eliminating those with large salary and pensions. Newer highers do not get any pensions.
By Ford and GM practically eliminating everyone left with pensions, cleaning out their management and salary staff, they will push back on the UAW. The UAW is demanding pensions, equal pay for all, "better" medical, etc... All of which are typical demands from the Unions. Realistically pensions are a thing of the past and so are high wages for unskilled, easily trained, and replaceable employees.
The Union can cry and scream all they want about "unfair" pay. In reality many Union workers get better pay and benefits than salaried employees who usually have better / more education and necessary / useful skills needed to grow and help the company. Union workers are a dime a dozen, and unnecessary.
Many big companies assemble products without a Union and their workers were found to be happier without them. Look at Boeing, Toyota, and Tesla to name a few. Ford and GM can easily eliminate the Union and replace the workforce.