How is it ignorant or a lack of football knowledge to examine past evidence based on literally every other league and see that this structure they try over and over and over and over won't work? Literally every single alternative football league does the exact same thing and it fails every time. There are hurdles they can never overcome.
1) The talent isn't there and never will be. The AFL pulled it off because they had money and there were only 12 teams in the NFL in 1960; the talent pool still had plenty of options for elite talent. The USFL sort of pulled it off for the same reasons, but even they had to sue in an attempt to stay afloat. These alternative leagues are worse than college football because it's filled with college level talent and literally none of the dynamic NFL caliber players that are exciting to watch on Saturdays. At best you're getting a single player who makes the jump and succeeds, but the rest of the XFL players will be guys who would be lucky to be depth talent in the pros.
Combine this with the fact that any college football weekend there are 4+ games on at any time, and you can find an interesting game to watch (This is likely a big reason why people like college football more than the NFL). With the XFL you'll have 4 games in one day, and maybe you'll get to see 1 or 2. And you're stuck with it no matter how bad the game is.
2) These alternative leagues have zero historical significance to rely upon. Again, overall NCAA talent is worse and more diluted, but people love it because they have emotional ties that can last generations. Millions of people attend colleges and universities, and have family who attended them (This is the second reason I think why a lot of us prefer college football better than the NFL). College football digs into that sense of being the way that pro sports did during their formative years. The Seattle Dragons, a team created a month ago owned by an unlikable multi-millionaire will create no interest or bond for a vast majority of people.
3) Leagues nowadays have insane upkeep costs. The financial structure just isn't there to allow them to survive. The AAF had hundreds of millions invested and it collapsed within two months. Every single year makes it even more difficult to meet these financial burdens. Especially when an entire league has less funding than a single NFL or top college team.
Quite frankly, it's ignorant and lacks football knowledge to put one's faith in any of these leagues surviving beyond one season. It still blows my mind the UFL made it four seasons before folding.