Your 4th bullet point is completely inaccurate.
1950: OSU fires Wes Fesler due to his in-game coaching decisions during the infamous ‘Blizzard Bowl’ loss to Michigan.
1978: Fesler’s replacement, Woody Hayes, has an excellent 29 year run, but is fired for slugging a Clemson defensive player on national TV in the closing moments of the Gator Bowl.
1987: Hayes’ replacement, Earle Bruce is fired for only winning 2 Big Ten titles in 9 years. (As well as losing regularly to Michigan and Wisconsin)
2001: Bruce’s replacement, John Cooper, is fired for his complete inability to A. Take the rivalry with Michigan seriously, and B. Have any success in said rivalry.
2010: Cooper’s replacement, Jim Tressel, is fired for the dreaded ‘Lack of Institutional Control’ moniker (gear for tattoos, payment to players etc).
2018: Tressel’s replacement, Urban Meyer, resigns for ‘Heath Reasons’ after elevating the OSU football program into the Death Star that it is today.
So you see, only Meyer from that list has escaped the wrath that is the OSU fan base/boosters/administration/ticket holders.