Only one considering them an "underclass" is you, tbh as nobody has used that term other than you.
I get the tribalism of fans, I get from a fan perspective any change is bad but what on earth is the reality of being a Hartlepool fan? Overshadowed by Middlesboro, no chance of doing anything, maybe the faint hope a Hollywood C lister might be interested in a PR opportunity.
As TLG pointed out, no other nation has professional clubs as deep in their league structure as the UK does - most being geographically far larger nations.
That imo is one of the biggest reasons so many teams face financial issues, especially at lower levels. A lot of those clubs would be better off going semi-pro or full amateur to reduce the costs. Mergers could be another issues, potentially - especially at non-League level.
Ignoring problems don't make them go away.