You aren't reading favourably. It could well be that the whole stealth superiority fighter concept is outdated due to new cheap sensor technology (and its use in AA defense systems) and the whole concept of carrier groups could soon be outdated due to something new, like undetectable diesel/electric submarine drones that cost a 3 orders of magnitude less, thus could be built as swarms that become impossible to deal with. My main point is, don't just look at the spending. And (I think your comment is symptomatic), don't forget the damn nukes, those things should be the biggest worry of all.
Well I do think the F35 and carrier approach is very soon to be outdated. Which is also why there's zero chance we're going to order thousands of F35s; 10 years out, they'll already be wanting to kill that program to replace it with something else as the obvious inbound threats to traditional fighters (various cheap autonomous tech) become more blatant. That of course won't stop them from spending as you know.
The carriers are not hard to sink; they never really have been for a major opponent. China and Russia have been able to sink them for a long time. They're not for fighting adversaries that can sink them. They're force projection, intimidation, and for fighting countries that aren't Russia or China. Carriers will be useful in their present role for a few decades to come yet (their current role is not for potentially fighting Russia or China; anyone that thinks that is seriously confused). Military tier nations in the capability realm of Iran, might pose a real threat to carriers in 15-20 years. The trick with US carriers, is that anyone (again, not named Russia or China) that actually sinks one has a full scale war with the US on their hands. In that sense, carriers are a taunting device: you can try to sink one, but if you succeed, your country is going to be massively attacked (you're going to trade sinking a carrier for losing all your airports, your power grid is going to be taken down, your airforce is going to be neutralized, your economy is going to grind to a halt, etc).
Any country that will dear to sink an US aircraft carrier will either have the means to wipe out most of US population too (Russia, China) or just won't care about the consequences (North Korea / Iran, if they think US is about to attack them). In neither case is taunting particularly efficient.
