It's a good point however there are some positives.
The pollution generated isn't directly at pedestrian height in built up areas.
Some of it is. This is a relative risk thing, ie the risk of engine exhaust products (carbon, NOx) vs other pollutants. So there's also dust created from tires, brakes and wearing the road surface. Which is arguably riskier for EVs because they're generally heavier than ICEs. There's some mitigation, ie regenerative braking might reduce brake dust.
Then there are the lifecycle issues, ie pollution from the production chain through to disposal. ICEs are pretty recyclable, EVs, less so, especially the batteries.. And their production often isn't entirely 'green', ie extracting from salt flats around the world needs a lot of water, and can lead to pollution.
Every new upgrade to renewables/battery storage that is added to the grid instantly upgrades all vehicles to cleaner energy as well.
Nope. All that does is reduce your TCO and make your fuel costs higher, along with everyone else's energy. So figure on Hornsea 1 being 400MW @ £158.75/MWh. That's roughly £100 more than the current electricity market price. Then add 400MW of CCGT or diesel for when the wind's not blowing, and the price increases. Add in 400MWh of batteries for a 1hr backup, and the output of from those batteries would probably be double the input energy cost.
So that becomes a problem given it greatly increases transport costs, and energy costs that go into producing stuff in the UK (including services), and the UK becomes uncompetitive. But virtuous I guess.