I'll note two things, by the way
1. O&G companies also get tax subsidies.
2. The Republican led government of Texas approved giving electric cars the right to use the HOV lane with one person in the car, so you must thus acknowledge that they are at least as irrational
https://www.forbes.com/sites/drillinginfo/2016/02/22/debunki...
https://science.howstuffworks.com/science-vs-myth/everyday-m...
Original paper referenced above. https://afdc.energy.gov/files/pdfs/argonne_phev_evaluation_r...
In the conclusion: "The primary conclusion is that electrification of transportation significantly reduces petroleum energy use, but GHG emissions strongly depend on the electricity generation mix for battery recharging. "
In other words, the marginal emissions caused by the extra load is the actual consequence, not the emissions proportional to that load.
But PHEVs in my opinion have an overlooked utility for demand dispatch and battery to grid transfers, even when compared to BEVs.
The entirety of a PHEVs battery can be used for either task.
A long range BEV that you use to commute may be put in a mode where the power company is free to decide when to charge the battery once it's above a user set minimum. This allows off demand to be shifted to follow renewable production.
But for a PHEV, that minimum is zero. While the battery isn't as big as a BEV, the portion set aside for this purpose may be as large. During a heat wave, they don't have to pull anything from the grid, and can in fact contribute. Dirty power, but much less impactful than building power stations for a few days a year.
The net result is a vehicle that acts as a BEV for commuting, is able to travel long distances without a supercharger, and allows the grid to tolerate higher renewable mixes.
I think it makes a ton of sense today. But the market is shifting so quickly, it may only for a short window.
I think that this is unnecessarily cautious, to the point of being misleading.
The right answer is "Hybrids ARE lower than ICEs when it comes to GHG emissions" - this is true in general and of all hybrids collectively. It may not be true in some rare individual cases, where the hybrid is not particularly efficient and the electricity is generated from coal (see figure ES1 in the Argonne paper you linked above).
Tax rebates for "going green" is irrational because it defies its own purpose! If EV's are great, they're great because they emit less NOx, and that should be the impetus to switch. If Democrats are the Superior party, and they know best, they won't need financial incentives (read: bribery) to promote the Superior Choice. But really by "incentivizing" various things, they are proving what they're actually about: pay-for-play.
Additionally, entrenched markets can be difficult to enter. If solar would win a fair race against petroleum, but it's starting centuries later, it may have no chance without initial subsidies.
"Impetus" is an issue of opinion, not rationality. Some people are incentivized by different things. But if the government as a whole wants less gas used, it can use money as a carrot.
I mean, if you want to call that "irrational" then basically all government spending or credits are irrational. Sales tax is irrational. Farm subsidies are irrational. The mortgage interest rate deduction is irrational. Military spending is irrational. Parks are irrational. Sports stadiums are irrational. Public universities are irrational. The term loses its meaning.
Everything is "pay for play" (as you put it) in a real economy. We, as represented by our elected government, pool our resources to get things that we can't get by individual action. This is like government 101, dude.
Sorry, how exactly do you balance that? On one side, you have government encouragement of renewable energy, low emmission vehicles, and solar power (though on that one they got scammed). I can see arguments that the first two are bad policy, and the third is a straight up mistake (and fraud on the part of a few individuals). None seem "irrational".
On the other, you have a whole political party that has simply "decided" to reject long-settled consensus science on the basis of what they "want" to be true philosophically.
Really?
Fossil fuels are subsidized by almost 5 trillion USD a year. How do you expect anything else to be able to compete?
http://www.imf.org/external/pubs/cat/longres.aspx?sk=42940.0
If an ideology forces people to deny established facts, that ideology is pernicious and pathological. I don't think such problems can be sidestepped. If it's come to "don't mention CO2 pollution or you'll offend" when it's literally threatening the planet, well, offending becomes necessary.
Why? Seriously, for someone outside the US, why in the name of anything that is holy to anyone, would people actively try to destroy the planet and justify it with their ideology?
I mean, I get that you can have shares in a fossil fuel company, and you don't care if your children and grandchildren will have a place to live on. But I honestly do not understand why the split is "along D and R lines" — how does this have anything to do with political affiliation?