Can't see it really.
The road infrastructure couldn't cope. If a stadium was considered a bad idea there mainly due to massive transport issues, something with the potential to bring in more people, more often would cause untold problems.
It's over 11 miles from Brighton (Burgess Hill is closer to Brighton), outside the city and in a different county. Apart from that, excellent analysis.
But the arguments being put across are simply 'because that's what people do...'
My question was 'why would they do that?' As in, 'what are the grounds of their objections?', not 'why are they such bellchops?'
The fact the plan is in the National Park is not, in itself, a reason to object.
i can't help that you're baffled, nor am I living in a box. Meanwhile, back in the real world...
... this is the most likely attitude to the plans from the planning authority - the people who matter.