In a way, this is like the "uproar" over KLOL changing formats several years back. A station that was rating challenged, playing a format that was demographics challenged. In the end, the station decided to do what it needed to to make the most money it could, and started playing Latino/Hip Hop. And the wailing and gnashing of teeth began. "How could they change? They're stealing from the community."
When you asked when the last time most of these people actually listened to KLOL was, most couldn't tell you. They were upset by the idea.
So when a bar that is in a fairly prime spot, real estate wise, and does a fairly limited business, they are vulnerable. If the market will bear a Pearl Bar 2, or whatever the hell it's going to become, then so be it.
If people want their dive bars to stay open, they should support their dive bars with money, often.