But what if Joe is not president in two years and common sense conservatism at least influences government?
I'm not sure what this has to do with my comment; I sincerely doubt Toyota developing or not developing an EV has anything to do with who is the US President, since they sell most of their EVs in countries other than th eUS.
The United States is not prepared to handle a sudden switchover to EVs.
I'm not aware that any "sudden switchover" is going to happen. I know some European car manufacturers are planning on transitioning by 2030, Ford and GM have set a goal to switch to EV only by 2035 -- none of those are a "sudden switchover", particularly as older ICE vehicles will remain on the road. There is also nothing claiming those vehicle manufacturers are going to hit those goals.
The power grid is not ready,
It's not as far away as some like to claim. This is particularly true since most EV's will be charged by their owners overnight, to be ready for use the next morning -- and overnight there is a lot of unused capacity in the electric grid. I'll agree that the power grid needs to be upgraded though it has been needing that regardless, this just adds incentive to actually get it done (rather than letting people in Texas freeze because they didn't learn previous lessons about upgrading the grid).
the economy will be greatly damaged, the infrastructure is not ready, we are not prepared for the health problems and environmental damage the EVs will cause. EVs are far heavier than gas powered vehicles, the roads will wear out faster,
Is this really true? Tell me, how much has the increase in pickups being sold across the US impacted wear and tear on our roads -- the average pickup weighs more than your average EV. I'd be interested to see where you've argued people need to start buying smaller cars and that we should maybe add usage fees on heavy pickup (light) trucks and SUVs because of the damage they are doing to the roads. Assuming you haven't, it would likely be safe to think that this is not a real concern of yours but something you read and are just parroting.
Yes, EVs will slightly increase the average weight of a vehicle. At the same time, the difference in what damage it might cause to roads is still nothing to what the damage by medium and heavy trucks are doing.
If the average car does 1 damage; and an EV does 1.27 (not an actual number, just doing it for the comparison), about the same as a large SUV (in this case a Toyota Highlander); a full-size pickup will be at least 3.57 damage, and the Hummer EV (a truck few will actually buy) is around 21; but a large truck (18,000 lbs, about half the weight of an empty semi-truck) does 410, meaning semis are doing damage in the thousands. It's a concern, but not a major one.
So should we limit the size of automobiles and trucks sold in the US, or at least tax them much heavier based on the size of the vehicles (make large family SUVs taxed heavier due to their "excess" weight)?
the tires will wear out faster causing more particulates to be launched into our air, more bridges and parking ramps will collapse, and at least at the beginning our country will be at the mercy of foreign suppliers and supply chains.
As for tires, yes, weight is one thing that causes more wear along with temperature, tire hardness, inflation level, etc. You also start figuring that EVs typically use an "Eco" tire, which tends to be a harder compound tire, that typical EV wouldn't go through tires faster than average. As ever, the biggest factor in how fast tires are used comes down to the driver, the faster they accelerate, the faster they drive (how hot the tire gets), etc., is the largest factor in tire wear. So, if it is really a concern, we could have automakers "detune" (lower the amount of power going to the electric motors) to accelerate slower and limit the top speeds, if this is really a valid concern of your and not just some point you read off an EV hit piece but don't necessarily care about.
A new president might make the EV owners pay their fair share for roads and pollution.
What extra pollution? Yes, you listed a couple of things that could slightly increase -- though have never cared that the average size/weight of US cars and trucks have drastically increased over the last couple of decades. You likely also read "hit pieces" that try to compare the Hummer EV, or even a Ford F-150 Lightning, to something like the gasoline powered Toyota Corolla -- not quite a fair comparison.
You also ignore that the laws passed by this administration, such as the new EV tax credits, are based on batteries and other components being not just built in the US, but that the minerals used in making them are mined in the US or a free-trade partner (which eliminates minerals mined in China). And, as you point out, this is beyond the improvements being made in battery technology, like the LFP batteries Tesla has started using in some models -- where the cobalt is replaced by iron. Yet, if we limit the sale of EVs -- make them even more expensive than they are today -- then why do you think there will be a huge push, with a lot of money spent, to improve EVs, if you can't make money building them? A major reason we see so much of EV innovation coming out of Tesla is that they are the ones who benefit the most by improving the tech; making more efficient and lighter batteries and improving the charging abilities lowers the cost of manufacturing and makes their cars more desirable. And, as we've seen, as long as they are the one seriously invested in making EVs, they are the only ones with a real need and desire to improve EVs. The more the rest of the industry moves to EVs, the faster you will see the improvements you claim we so badly need.