There are a lot of ways to protest. Chanting, singing, posters, banners, social media discontent etc. I feel like the one's who will be most negatively impacted from a mass walkout will be the players, no? What does that achieve then?
A young squad, and we're going to completely demoralise them. The players aren't good enough, but is that their fault? What are they gonna do, resign from the club and stop trying? It's a failure of the club that we have such a poor team, but making the situation worse doesn't help anything.
Go to the game, support the team, like we always do through good times and bad, stay at half time chating about the Glazers, after the match even, but for that 90 mins we should just try and support our the lads, they need it now more than ever. Walking out is just going to make a situation worse, and to be honest, this is the kind of thing I would expect from the toxic Arsenal fanbase, not Manchester United.