Look, we all need a good rant here and there, so hope you feel better. 
Reirden was so highly regarded, that upon getting fired, he got an opportunity....... as an assistant coach. He was awful, and just because we're in a pandemic, doesn't mean you shouldn't have high standards. Fully disagree on blowing it up, we aren't there yet. I think this team is every bit as talented as whoever wins the Cup this year, and the team that won it last year. They absolutely have a chance for another year or two.
And with that being said, what exactly do you think BMac needs to be held accountable for? What roster moves/draft picks have you disagreed with?
I think GMBM is, relatively speaking, a good GM. There are a lot of GMs who make horrible moves. GMBM does too, but he at least limits them. It's pretty refreshing how honest he is too. He says he's going to do something and he does it. GMBM made the necessary moves to change the culture in 2014. I believe all general managers are bad, but B-Mac is one of the "least bad", so to speak.
Draft picks... Lucas Johansen is the only one that jumps out at me, tbh. Imagine if the Capitals drafted Alex Debrincat (who should have been a first round pick anyway) instead.
Roster moves... Signing Richard Panik to replace Connolly wasn't a good swap. Maybe he misread the market for Connolly? Also, the Evgeny Kuznetsov signing deserves more scrutiny than it's currently getting. Everything else GMBM has done, I've at least been able to see the logic behind it. Sometimes, crap happens and you can't really help it. Example - what if Kempny doesn't get his knee screwed up on a dirty play in 2019? He was good until that injury and he hasn't been the same since. Can't blame GMBM too much for that one.
The Kevin Shattenkirk trade is a bit of a head scratcher too. I think GMBM tried to hit a grand slam with nobody on base, so to speak. Seemed to learn his lesson by getting Kempny for peanuts in 2018.
GMBM deserves criticism for the Todd Reirden shenanigans too. I understand why the Capitals didn't give Trotz a long-term deal. There was always a disconnect between GMBM and Trotz. It's very, very, very hard to win when your GM and coach aren't on the same page. GMBM, to my knowledge, never explored any other option than Reirden and didn't even get him an experienced head coach as an assistant to help him learn on the fly.
That said, I respect how GMBM acknowledged his mistake and did what it took to fix it. So many GMs are scared to death to admit they're wrong and B-Mac isn't afraid to.