My personal take on this is that yes, it sucks to pay membership whilst (still!!) not being able to shoot, and yes, it would suck if fees were to go up, but at the end of the day a national governing body is useful for me to do my sport to the levels I desire. Therefore if I need to buy 3 fewer coffees/beers over the course of the next year to help AGB survive, that's preferable to them collapsing. The same is true at a club level as well - whilst I hate not being able to shoot, the long-term survival of my club is worth far more than any short-term compensation for lost personal shooting time.
Perhaps we can look at a reduction in fees once everything has stabilised, but for now supporting (within reason) our clubs, and AGB and their employees through this is the way forward I think.
That said, some closer scrutiny into where various parts of the membership fee goes might not be an entirely bad thing in itself - this is covered in the AGB annual report for those interested.