I can only speculate at even what the tenor of it might be.
Do you concede, at least, that it is at a pretty low level and that it might be overall outweighed by positive support for retaining the heritage of the Gaelic parts of Scotland - including the language?
It's things like whoever speaks it is stupid, backward, usually drunk, likes sheep (if you 'get' me), is married to their sister and likes to fiddle with kids too, etc etc.
If you have any bilingual signs, people complain bitterly about it being a waste of money, as if it's bankrupting the country 🤦♂️
Whenever yet another Gaelic language thing starts up, it's hailed with howls of ridicule and scorn and likewise when it fails.
People actually protest against Gaelic things.
There are Gaelic T.V. programmes for kids and I've heard parents not letting their kids watch it, as if it's dangerous.
People get suspicious about the few media outlets there are "They could be swearing at us or anything!".
Just a few of the things I've heard over years, largely ephemeral and lost in the winds of time now, but I've seen enough of it.
Living in Glasgow, I assume it is probably flavoured by the whole sectarian thing and the Rangers/Royalist element, but I have seen things about where people from all over were slagging it off, even in Inverness.
I do still think it's largely a southern thing though.
As for being positive? I'd like to think so. Maybe I have just met too many peanuts in my time, but I've seen far more negativity towards it over the last 40 or so years than positivity, sadly.
To be fair, I know it's a small and minority language, but it isn't helped by us being a country which makes a lot of people cringe (The Scottish Cringe).
It is there, maybe you were just lucky.