This is an assumption of guilt.
You haven't been judged, you haven't been proven guilty, but you're being treated under the assumption you could be guilty.
The warrant is to charge you for an offence, and ask you to turn up to a trial to assess your innocence or guilt. You then get bailed. They only refuse to bail you if the prosecutor can prove that you are likely to run.
For further protection (an outcome of the English Civil War), law was passed to ensure that bails were not set unreasonably high. "Excessive bail ought not to be required" said the English Bill of Rights of 1689, and that law not only goes into the Canadian and Australian constitutions but into the American one too.
Julian Assange got bailed - and those providing the bail only had to sign a letter saying they would pay a sum
if he ran, they didn't have to part with a penny till he actually decided to run instead of turning up to his trial (in scary Sweden).
It's good to question things - but you can waste an awful lot of time re-fighting battles that have already been fought and won, instead of concentrating on the battles of
our time.
A big battle of our time is that the muslims are the new jews, and people who claim to be libertarian have a blind spot about collective guilt and collective punishment (not you, I hasten to add) - even as they assert that they arn't responsible for their neighbour's actions they simultaneously claim some poor hapless muslim in Britain or Canada is responsible for some action they didn't even know was happening in Indonesia or Afghanistan. And nobody points this out - at least nobody in power -
that is the battle.