There's definitely government waste as in any large organization, but what the current administration is doing is basically you trying to cut wasteful personal spending by quitting your job and then beating up your foreign neighbors because they aren't paying you to keep your yard presentable.
The other issue is that apparently these "geniuses" can only account for things in terms of dollars instead of other value - they seem to only be looking at the cost side of the ledger, not the benefit. Take Ukraine for instance - what is with this "oh we'll help you defend against an aggressor but only if you pay us" instead of "we'll do this because helping the oppressed is the right thing to do" - and that's not even getting into the "oh you refuse our deal? We'll just throw you under the bus then" stuff.
Basically people screaming about waste are just mad because they don't see anything other than direct personal benefit as worth it. They can't see the benefit of a government being the last spender of resort for things like research or public welfare.
Sure cut waste - but they are literally throwing out not just the baby, but the entire nursery, with the bathwater. Not to mention destroying any kind of international goodwill we once had. Sure you might be able to have some short-term personal benefit from it, and the stupid $5000 checks they are throwing around is an idiotic inflationary disaster waiting to happen, but yeah, keep enjoying the narrow, self-first view of the world.