Jail isn't the automatic sentence for anyone who has ever done anything bad though
being okay with something and not thinking jail is the best form of punishment are two ends of a spectrum - there are lots of options in-between
I'm not saying she doesn't deserve punishment - of course she does.
If we had limitless jail facilities and incarcerating someone had no cost to the public then maybe it could be defendable.
But in our current position, where it costs over £50k a year per inmate,
And we are releasing violent and repeat offenders because we don't have room in prisons
And most people (men) arrested for CSA porn don't get custodial sentences
And police don't have resources to attend crimes like DV/break ins/shoplifting, let alone get them to prosecution, at which point they wouldn't even be sentenced anyway?
There is no evidence that anyone was actually driven to any action due to her tweet. The risk to the public from her is very low. Therefore I would prefer that people who are an actual risk go to prison, and first time offenders of non-violent crimes are dealt with in various other ways - large fine, community service, etc. Plus the non-judicial effect of public shaming, etc.
I would absolutely say the same thing if she had made the remarks about any other group of people, including those I am a part of. It absolutely is hate speech and deserving of punishment. I just don't think jail is the correct one. It's not even about what she 'deserves' it's about consistency and proportionality in the justice system as a whole.