The promise is that Harris is essentially a continuation of Biden so with that in mind comparing to your list above:

Similarities ✓ the "Muslim Ban" on air travel, employing white nationalists as staffers, packing the supreme court with extreme conservative justices, giving permanent tax cuts to the rich, expanding the presence of immigrant concentration camps, cozying up to foreign dictators, directly pursuing strikes and assassination attempts against middle-Eastern military generals and diplomats, trying to start a trade war with China, discrediting his chief medical advisor on factual statements about Covid, saying Black Lives Matter protestors were "burning down cities", wanting to designate Antifa as a terrorist organization, declaring "far left radical lunatics" part of his "enemy from within", sexually assaulting over a dozen women and underage girls, being a generally abusive sleazebag, also funding a genocide (Israel has always been ethnically displacing Palestinians), also building the wall, also not implementing healthcare reform (and being against what we have), also not protecting abortion rights, and also denigrating anti-genocide protestors (but not as harshly since he wasn't the one in charge when it happened)

Differences: X Popularizing the idea of the wall in the first place, calling illegal immigrants "murderers and rapists", moving the US embassy to Jerusalem, being an avowed friend of Epstein, stating he wanted generals like Adolf Hitler's behind closed doors when his own generals refused to nuke North Korea and blame it on someone else, egging on a far-right insurrection attempt, calling climate change a Chinese hoax, calling Covid the "China virus"

They are faaaarrrr more similar than they are different as honestly some of the "differences" I've noted are just because the exact quotes aren't the same, even if some similiarly spirit quotes have been said.