Gentlemen (and others),
I don't think there has been any mention of stopping the growth of any GA sector, nor of preventing JTTB from operating.
What is being discussed here is the suitability of the location being used. It is in an area which is subject to a high traffic density including numerous training aircraft, along with a designated VFR route which has been in use for may years. Comparisons with overseas ops under different rules/standards is akin to debating how many angels can dance on the head of a pin. Let us concentrate on the subject and location under discussion.
A more suitable operating area (from the aviation point of view) may well have been sought and created with a bit of forethought and co-operation. Certainly the RAPAC discussion was very much along the lines of accepting the Elwood Beach without any alternative being put up, which was to me a disappointing approach.