Whenever Toyota claims there "aren't enough resources" for BEV's to be the only option, what they REALLY mean is there aren't enough resources for Toyota, mainly because they've been so slow to adopt BEV's and plan / setup their supply chains.
If they stick to this "plan" they will be one of the legacy automakers which fade away into obscurity by the disruption.
Toyota's logic is so terrible, and their own actions disprove their "reasoning."
All you need to ask is: what percentage of Toyota's actual production is hybrid at all? And, after all these years of producing hybrids, why isn't it 100% of their lineup?
Yesterday, Jalopnik posted an article ("This Is Why Toyota Isn't Rushing to Sell You an Electric Vehicle"), where they got a whitepaper document that Toyota sent to their dealers. The crux of it was Toyota's idea of a "1:6:90" rule -- for the same battery minerals, you can build 1 EV, 6 Plug-in Hybrids, or 90 regular Hybrids....and those 90 regular hybrids would prevent 37x more carbon dioxide release than a single EV.
It's pretty clear that their magic rule just used a crude kWh ratio, so just ignore that hybrids and EVs use different battery chemistries and therefore different minerals. Also ignore all the LFP batteries going into EVs now since they don't even need special ingredients. And ignore the existince of the various ways to use renewable power to power an EV.
Ignore all those facts that might be difficult to understand....just start with the real, present-day world:
Tesla, alone, is already producing EV's at a rate of 1.5-2 million per year.
Toyota's entire production is roughly 10 million vehicles per year, and only a fraction of that is hybrid in any way.
In 2021, Toyota sold 2.5 million hybrids. Not sure what that figure might be for 2022 or 2023, but probably not much different...
So -- where are those "90 hybrids per EV" Toyota wants to promote? The entire global vehicle market is something like 100 million per year -- why the heck hasn't every car been a hybrid for the last decade, if one company today can produce over 1.5 million full EV's per year? It is because every old-guard manufacturer wants to drag its feet and do as little as possible, Toyota included.
If any manufacturer would have made "100% hybrid" a goal/commitment, and streamlined their powertrains down to just hybrid options, it probably would have been cheaper overall. Why engineer and produce 2-3 unique combustion-only powertrains for every model, plus maybe a hybrid version, plus maybe a plug-in hybrid version? The only reason is "sticking to old ways" and "changing as little as possible." But it should be clear (and probably is to everybody reading here) that that boat has now passed.
Even if we assume that this year Toyota will double their 2021 hybrid production, and sell 5 million hybrids: by their math, that is the same carbon reduction as 2 million EV's. Congratulations! They can match Tesla with that half of their production volume, while the other half continues to pollute.
Even if Toyota actually decides to make all of their vehicles hybrid, at 10 million per year, that would be the same carbon savings as 4 million electric cars (again, by Toyota's own math).
How many years will it take for Tesla to be delivering 4 million EV's per year? I can pretty much guarantee that is going to happen faster than Toyota finally "electrifying" (hybrid, plug-in hybrid, EV) every car they sell.