I'd support the buses loading unloading on side streets, but still, imagine all the cars which would have to be on the road to replace the buses, if they were made illegal. Having buses bus people is actually a good thing.
What I think bothers some of the protesters is that the careers they chose aren't as remunerating as those chosen by 'techies'. I know artists who resent the fact the the average person does not value 'Art' as much as they value low brow entertainment. They feel at a loss and upset at the fact they have to 'sell out' doing advertising gigs to make money --that doing 'Art' is not profitable and that the government should subsidize it more because "they know it's good and it's an intangible part of a good society, etc." Much of that may be true, but the reality is most people (the proletarians and the vilified middled classes) don't have an appreciation for 'Art' and ironically it's the wealthy who 'get' 'Art'.