Earlier quoted context omitted.
Of course ICEs get subsidies. The subsidy is in the form of a carbon tax that we do not collect, even though we should. Every ICE produces emissions which will soon make most of our planet uninhabitable. There should be a carbon tax, so that we can offset this destruction: by building nuclear plants, or figuring out how to re-capture the carbon emitted into the atmosphere. And yet we do not collect that tax, hence he…
You have a point about the negative externalities, but insisting on using the word "subsidy" for that concept is just going to confuse people. That isn't the accepted meaning of "subsidy", in casual conversation at least.
Subsidies do not have to be in the form of cash: many come in the form of tax breaks and I would consider this to be one such case.