Our club does occasionally close down for private functions that are compensated by an 'honorarium' to the club treasury, but about 2 a year. Last one was the Club President's son's graduation. It sounds like your club does a lot of things that happens in varying degrees in most clubs. It also sounds like a few members there
do think it's their private fifedom. Your meetings sound a bit more raucous than normal; Do they not follow Robert's Rules of Order? If not, try to get them to start, attendance will wither from boredom, and you will be able to be heard.
Our club posts a Calendar on the website, clearly showing which ranges (Rifle, Pistol/.22, Acrhery Outdoor, Archery Indoor, or Archery walking trail) are closed and why. I have had experience with this being a 4-H Leader-guys would show up to shoot, and be mad because we were on the range. I'd ask them if they checked the calendar and get a "well, no..."
Ask for a copy of the by-laws, study them, and work within the system for change. If this is not worth it to you, finding another club might be the better option.