Unusually, I have to agree with your conclusion on this from personal experience.
Last springtime, I attended a Freedom Rally against lockdown measures and actually agreed to be a secondary speaker. The Rally was led by an SNP councillor from Lanarkshire who was very articulate. Doubt if he’s still in the SNP.
Anyway, it became very apparent that the bulk of the protesters were anti-Vaxers or eco warriors along with every type of conspiracy theorist imaginable.
I quickly realised that those people, although very friendly towards me, were not the kind of bedfellows I wanted to be associated with.
Oaksoft - be warned.