Simple. They see opportunities to blame the opposition for the failure of their economic policy. They've been doing it for decades with great success.
There's a significant percentage of voters who will believe, no matter what, that what's going on right now is the fault of the Democrats. Hell, Federal agents are killing people in the streets on camera and a significant percentage of the population is OK with it.
Just like there are young voters today who blame consequences of Reagan and Bush on current leaders. Just like literally every cycle for the last 30 years Republicans fuck an insane amount of shit up and try to break the economy and then dems have to work doubly hard to do a shit repair job while being fought tooth and nail and then they get blamed for the lack of progress.
* Assuming we still have elections