Just a quick skim on wikipedia tells me there's layers up on layers to our football league system (it's almost impossible to really get to grips with some of the league-ception) and I'm thinking why? What's the point? Do we need the pyramid going that far down? Does it serve much purpose?
Do any of the major leagues across Europe have so many levels to their own football structure?
Yes. There is a demand for football and it's being supplied. It definitely serves a purpose. It gives the working man a chance to play football at a decent level and the potential for clubs to get into the 'proper' league system. It also supplies communities. Communities aren't just one shape or size. Take Greater Manchester for example. You have United and City as the clubs, but narrow the City down and you have Oldham, Stockport, Salford, Bolton, Rochdale etc...narrow it down to just a city and then you have United/City etc, narrow it down to a borough within a city etc.
Not sure about you but in my town we were 'split' so to speak into the North side and the South side and we had a rivalry. But collectively we had a rivalry to the next town over. Collectively again we had a rivaly as Scotland against England and so forth.
When AFC Wimbledon had to start again they began in the 5th tier pyramid (I believe there is 7) and are now in League 1. One of the most popular clubs on social media is Hashtag United that are also in the 5th tier but started in the 6th. Made by a bloke on Youtube with his mates at Sunday league level and turned it into an actual club.
Football is in such demand in our country that we can sustain a pyramid like this.
