You have correctly identified the relevant difference: rhetorical approach.
Biden-Harris: feigned concern and "ceasefire" claims while providing unconditional support for the genocide.
Trump: no feigned concern or "ceasefire" claims while (presumably) providing unconditional support for the genocide.
But this difference means nothing materially, of course. If someone punches you with a smile on their face do you thank them for it?
The Biden-Harris regime has provided, unconditionally, the material snd diplomatic support needed for Israel to carry out this genocide. If you support them, you are complicit.
Who should look in the mirror?