It persists as a problem to this day because of trump's incompetence in dealing with it to begin with. The daily known average just dropped below 100,000 per day. So at least it's finally waning.Trump was right, it did go away 'someday' like you pointed out.
Biden, on the other hand said he would defeat covid.....he hasn't, in fact the death tool under Biden grew very high.....even though the Trumpvax was being used.