I am concerned with it.
I'm responding to the arguments made by people on this forum. There isn't a Republican poster defending the low road.
In addition, this is something that has hurt the Republican party politically. They are getting punished by the voters for election denialism, ethics issues and the like.
Some recent elections have gone pretty well for Democrats. It is very rare for a party to get kicked out of the White House after just one term and that happened to Trump (Since 1900, the only other time it happened was the Democrats losing to Reagan in '80.) They beat expectations in the midterms and kept the Senate. And in the last few months they've won some special elections. It would be quite foolish to give up the advantage of being associated with the high road.