Good points,
But we all boycott some airfields when they are too expensive for the facilities or when it is made abundantly clear that GA is being discouraged.
Plymouth, for example, was not always the most welcoming of airfields and imposed security and other procedures well beyond its needs. I used to contrast the way that they made things difficult for us whereas Gloucester in recent years has become a much more friendly destination and richly deserves its new reputation.
I know of at least 3 airfields I used to visit that I no longer go to. I would love to use them again but I won't until they change their mindset (and mandatory handling charges).