Israel in its current form has no more legitimacy than Apartheid South Africa had. I lived through that struggle, with right-wing politicians bolstering the apartheid regime and sending arms as ordinary people protested it. We eventually won that battle and eventually we will win this one too.
FWIW, there is no mirror image here. There is one two-state solution and two one-state solutions.
The two-state solution has been made impossible by Israeli settlement activity (which picked up substantially during the Oslo negotiations and has continued at a furious pace ever since).
The two one-state solutions are: a single, secular democratic state with equal rights for all its people and equal right to return for Palestinians; or a single Jewish ethno-state with Palestinians imprisoned in occupied enclaves with no access to the outside world other than what their imprisoners agree to.
The latter one-state solution is what the Israeli right are trying to achieve and, as with Apartheid South Africa, the global right (and the arms industry) are rooting for them to succeed. The rest of us have to fight it, as we did with South Africa, and also East Timor, and are struggling to do for Myanmar, the Congo, Somalia and East Turkmenistan. And would for North Korea, if there was any leverage available.
Israel does exist and will continue to exist but it has absolutely no right to exist in its current form.
It fucks your whole life up even if you're eventually found innocent.
I'm not a fan of carceral solutions but this is not something only abolitionists should care about. Remand (and also, short prison sentences) are viciously unfair, causing disproportionate harm which can never be compensated for.