Why has labor been so bad??

I’m an ASD in my store and it’s been hell. Labor has been so bad for months. We haven’t been making payroll forever! The whole district is suffering. They give us a budget that well below what we need. Then our DM and COS gets mad if our store is not in best conditions. My SD has been really stressed lately too. My employees have been constantly complaining cause we’ve been cutting hours badly. My meat manager is transferring to another store because my SD yelled at him about out of date packaged meat, even though the OPs have been taking him out of the store to help other stores. He also has been asking for a meat clerk but it’s been hard to hire being as though labor is so bad that I can’t even give hours to the people I have now. Also, apparently some of my employees are going to the union because they don’t like that my SD and I help their departments. They’re apparently saying we’re taking their jobs from them. It’s just been so stressful lately. I don’t know what’s going on with this company but it’s going down hill. I’m trying to make everyone in my store happy but no one is.