They don't care about the spending. They yammer about it as a way of shifting funds towards things they care about, like the military or their new gestapo or buying votes from their disaffected constituents, but they've never given a shit about the deficit, and have never done anything to stop it.

The closest they ever came to actually caring about government was with Musk who went in and actually started (illegally) ripping shit out. But the things he ripped out were inconsequential things that conservatives didn't like, and he didn't even make a dent in the actual budget. All of the things that Musk got rid of were congressionally appropriated and could have easily been congressionally (i.e. legally) de-appropriated accordingly and it supposedly would be easy for them to do with majority control over the house, senate, executive, and judiciary...but they didn't do it, because they don't actually want to cut the budget.