I wasn’t just looking at 20, 30 or 40 years ago, but basing my view on 131 years since the current club came into existence (is that enough it do I need to go back further to before the Town/Swifts merger?)
For instance, “One thing the club has suffered from is that it has always had more critics than supporters” - a remark from the then chairman in 1892!!! My, how times have changed.
If you are going to cherrypick individual years/attendances to draw comparisons between us and other clubs, I recommend this site Football stats
You will notice that there are gaps in our own record - these are the years spent in the non-league wilderness after we failed to be re-elected by the other clubs in our division (a decision usually taken because a club’s finances, facilities, or share of gate receipts you’d get from playing them, were below expectations). These are covered here on Wikipedia.
You quote our record attendance of over 25,000 against Newcastle in 1961/2. This was not a typical gate back then as our overall average that season was less than half this - and that average itself was actually down on our best ever season for attendance just after WW2. Is that the season and attendance level we should be aspiring to? That was the boom time for football in general and the recent surge in popularity in the game that you allude to still comes nowhere near this - as many of the stats in this article demonstrate https://www.google.co.uk/amp/s/talksport.com/football/116838/top-20-english-clubs-ranked-highest-ever-average-attendance-across-league-season/amp/
The reason Albion, Villa and Wolves numbers look to have gone up is because you’ve taken figures from years when they weren’t doing too well (if you want a good laugh, look at how low Wolves had sunk in 1985/6) and then comparing to now when they are doing better (relatively). The increase wasn’t new fans flocking to them but pre-exisisting fans who had stopped going when they were crap returning when it looked like they might achieve something. Same argument why Sunderland got a Boxing Day crowd over 40,000 in this division when it looked like they were going to be promoted - a bigger turnout than they were getting when struggling in the Premiership and Championship. Ditto Tranmere on the back of 2 successive promotions (will they maintain this level if the momentum stalls?)
None of this means I’m disagreeing with you about the club needing to a) increase our overall fanbase, b) mobilise as high a percentage of that fanbase to actually attend home games (as we don’t get a share of away league gates) AND purchase all the add-ons of merchandise, programmes, food and drink, etc that helps to beef up the coffers and give us a bigger playing budget.
As I’ve argued elsewhere, the non-football income streams more than covers the rent, and absolutely Bonser (or anyone else on the radar) is not going to put his hand in his own pocket and make the budget bigger, so it is only gate receipts and allied incidentals that are going to do that. And that’s why I find it mystifying that at least 1 of 3 supporters groups (none of whom seem to get on with each other) who you would think would be encouraging people to get behind the team are actively reducing the match take by getting people to spend their money elsewhere and are giving any surplus funds they generate not to our club but to another one. Can someone explain the logic of that because it stumps me??!!
Perhaps that old chairman was even more right than he thought!