Not sure anyone is convincing anyone on here, as ever. For some Gaza is literally the only thing that matters, so for them any other topic or concern comes second. Fine. But at this stage you need to accept that not everyone agrees with you.
Personally as I've constantly said on here I believe it's an enormously complicated issue to fix, and so judging any individual on not being able to fix it is not going to get you anywhere.
As other more nuanced posters have adroitly said, Harris is stuck as she's beholden to Biden and his (imo misguided and outdated) policy of Israeli support. Let's see what she says tonight, but anyone ignoring that is just ignoring reality.