Ultimately, I decided to leave the band after hanging out the other night for the first time since the lockdown started because of things like being told that my knowledge is inferior to the guitarist because of his master's degree in music. Also that I'm ignorant to what the music needs to be & sound like. There's plenty more drunkardly trash talking & belittling of my abilities that I won't get into. I will however say that for over an hour of this argument, I was literally not able to finish a single point I was trying to make before getting interrupted.
First off... congratulations on leaving the band. No on needs that kind of BS. Those kind of comments alone would make me tell them to go p!$s up a rope. As far as the pick... a no from me. I've only been asked a few times in my 40 something years of playing. My response has always been "OK, when the drummer buys a new kit like (insert name here) to get his tone, and guitarist buys new (whatever, amp, pedal etc) and... we put the song back to the original key, and the vocalist will have to do the best they can" And they will usually come back with something like "that's ridiculous", or "that's completely unreasonable" They get the picture pretty quick.
Bottom line, it's a cover band. You can play note for note, cop the tone, and still not sound like the original artist.