I agree, with the caveat that it had been going on before Ole as well.
We should get it straight; those saying 'I blame Ole et al for how poor our attitude is now' are not (at least I hope not) saying 'our attitude under LVG/Jose was top notch and it went to shite under Ole'. We have not worked hard enough as a team for years, but Ole was specifically targeting a reset in 'culture and mentality' as you say, but what we've got is the worst situation in that regard I can recall. We bounced under interim Ole when he brought the likes of Pogba, Martial and Shaw in from the cold and worked to put smiles back on faces after a dreadfully poisonous few months at the tale end of Jose, but when he got the job full time and was able to bring his own players and coaches and had time to instil culture/mentality etc. what we ended up with is a load of shite. It's obvious and RR has all but acknowledged it in public.
Where we go now depends on whether we give RR a chance to gut the club and modernise it, with all that entails. I know I've been reticent in the past about following the crowd and deviating from, dare I say it, 'the United way' and in the back of my mind thought modelling our approach on that of the Red Bull Group was somehow beneath us, but I firmly believe that is what needs to happen now. Bring in the best young coaches, develop good players, use modern footballing methods centred around workrate and technical factors etc. The Red Bull branding and all the rest of it I'd rather not have, obviously, but I'm absolutely done listening to how 'United do things differently' while we slide into absolute obscurity. The ownership is of course the elephant in the room but for now let's back RR to transform the footballing side of this shambles.