For a long time, a lot of people who really just wanted a smaller government pretended to care about debt (or fooled themselves into thinking they cared about debt).
Three quarters of US government spending make the federal government an insurance company with an army. As a percentage of the total spending, waste fraud and abuse is very small. DOGE was a failure because it didn’t understand the US federal government. If you want to significantly reduce spending, you have to stop sending Americans checks (like Medicare and Social Security), or/and have to weaken the military, although the check cutting part is much bigger than the military spending part.
Republican politicians used to lie, or be misinformed, by saying that tax cuts pay for themselves; now they lie, or are misinformed, by saying Trump won the 2020 election (he did not). It’s hard to make a tough compromise under such politics.