Tell me, how is this okay

My mom started working again I think two or so weeks ago, and my dad has been off work since March 14th due to Covid. I don't have a job rn and I can't drive atm either.

Point in saying that is while my mom is working 5-8 hour days cleaning (she does custodial work), my dad is at home watching Disney+. Occasionally yes he'll get up and do something productive, but not without complaining about it first.

My mom has been eating clean for probably 6 months, and I just recently decided I wanted to eat clean too. My dad doesn't go grocery shopping unless he's with my mom and she just doesn't have the energy lately to do that. So for the past few weeks we don't have what we need to make healthy meals. We barely have enough to make a meal in general, we just have a bunch of odds and ends of foods. Which is better than nothing I'm not saying I'm not grateful, but my mom is eating clean to lose weight and I'm eating clean(and working out) to gain. Now my dad, he doesn't care about his diet so of course it doesn't matter what kind of foods are in the house.

I think it's so fucked up that we go without the foods we need to eat healthy just because he won't go shopping by himself. My mom still goes shopping when she's exhausted, but puts it off cause she is so worn-out. What's even more fucked up is my mom thinks this is okay. She doesn't tell or ask him to do anything besides maybe wash dishes a few times a week.

I cannot wait until I start work up again so I can start saving more to get out of this place