Speak for yourself.
I donāt agree with what heās saying but I donāt think itās offensive, and it represents what a lot of " normal " voters do quite likely believe.
Also, as you say itās a music internet forum, not a politics one. If youāre going to have a politics thread on a music forum, then are you saying it has to be immune to any kind of criticism of Corbyn?
If he really upsets you that much then ignore him. If we are saying that his past behaviour means that he is not welcome here, then the mods need to discuss that and perhaps have him banned for life, Otherwise, he has as much right as anybody to post his opinion here unless the content breaches the community rules.