The BIGGEST problem with clean energy

Just one problem...
Preface: I like your channel a lot, and I think you're doing a great job. 
You say you're new to hydrogen fuel cell powered cars, so I'll take your word for it.
You state that Toyota is your sponsor for the current series of videos you're making, so I'll also take your word for it.
Based on my research, and my opinions and conclusions from said research, Toyota is anti-EV. Specifically, Toyota is anti-battery-EV.  Their huge investment in hydrogen fuel cell was for naught. Ditto for their early hybrid investment two decades ago. Toyota did a great job with early hybrid technology from 2000 to 2010, but then chose to go in a different direction. Toyota is actively lobbying governments in Japan and the United States to SLOW the adoption of electric vehicles! Lithium is a "salt", and therefore much easier to mine than aluminium, but more difficult than sodium. Lithium is also recyclable. Tesla has both the plan and the tech to mine and recycle lithium, so I don't buy the "lithium will be used up" argument.

I also don't buy the "lithium battery degradation" argument either. My 2016 Model S still goes over 250 miles on a single charge, under real-world-driving, after more than 200,000 miles on the odometer. Just like my phone, I keep it charged between 20% and 80%. I can drive cross-country with extreme peace of mind. I dare you to do that in your loaner Mirai.  I fully support hydrogen, and I think excess grid capacity can be used to charge hydrogen tanks in the future, when there's an oversaturation of photovoltaics. For now, BEVs are crushing the Mirai. And Toyota should be running scared, as they are.

Disclosure: I've owned a Prius V, a "plug-in" Prius, and a Chevy Volt. I've installed my own  solar panels and used Tesla Power Walls as backup.  I've gone grid-independent, until I realized it was selfish, and plugged back in so the utilities can use my excess capacity for the greater good.