As you are seeing, the oil industry will collapse without gasoline demand.
The oil industry is collapsing because a huge amount of additional capacity was let loose on the market - we're no longer letting supply and demand run things, we're letting geopolitical positioning drive things - and 20+ years ago when we hadn't developed a massive structure around oil production in the USA, we would have probably not had the same collapse as we're seeing now.
The oil collapse is many fold, but the gasoline demand is only a small piece of it. As can be seen by the graphic up above, as you crack a barrel of crude oil, you get many products - and you can't just throw those products away. So jet fuel demand has dropped a huge amount, gasoline demand has dropped some amount (probably not as significant as jet), and distillates and diesel (used in trucking, ocean transport, etc) are probably also down as well due to restricted overseas trade and factory slowdowns.
So you have a machine (the oil industry) in a state where you suddenly have huge amounts of crude oil available at extremely cheap prices, which in normal circumstances would be awesome for many parts of the oil industry. Refining margins increase, you're going into the summer months where demand is high, and the overall net consumption of the world continues to increase (part of it is due to personal vehicles, but much of it is actually the byproducts of oil production - natural gas, ethane, propane, etc). However at the same time COVID has come around so you've got lower consumption worldwide on all facets, and the storage for both crude oil and products is finite (and it takes months to build a new tank), so you've got crude still coming out of the ground, pipelines still trying to transport it, but nowhere for it to go because the refineries bought oil from someone cheaper, the refineries are running out of space to store gas and jet because nobody will buy it, and it just spirals out from there.