The BIGGEST problem with clean energy

Okay, I know you are very much into hydrogen these days (you have to do a good job for your sponsor Toyota) and I'm all in for everything that replaces fossil fuels, but there is some dishonesty here or lack of research:
1. Flammable: Hydrogen is also flammable, and very explosive. But with the right technology, lithium flammability is pretty much controlled, like many other flammable chemicals that we use every day.
2. Capacity loss: a (well designed) EV loses 10% after 200,000 miles, stationary battery storage loses even less during their lifespan, not a big deal.
3. Supply: here is the biggest red flag: lithium supply will end by 2080? what about the new methods for extracting lithium? what about battery recycling? You sound the same as people that said oil would end by the end of the XX century, but worse because, unlike oil, lithium isn't burnt in the process of storing energy.
4. Cost: it's going down rapidly, but it may be the only fair point if alternative storage becomes even cheaper.