git rm -rf is only usable within the scope of the git repository and removes files in the staging area and working directory but doesnt affect untracked files or .git. rm -rf affects everything. For this case rm -rf probably would be the better option
edit: did a quick edit on the meme to change it to rm -rf since it makes more sense
rm - rf is the only version that makes sense, since the only reason to delete and re-clone is to recover from an unexpected .git/ state, and git rm won't remove that.