I disagree. The general tone I get is that everybody who plays covers is stealing food out of the mouths of the true artists' children. You obviously don't see it that way - you've said as much a couple of times - but that's how it comes across to me. Those who play covers are not only inferior musically to original artists, but are actually evil for not going way out of their way to ensure that those whose art they're improperly appropriating are compensated in detail.
Up to now I haven't disclosed which "camp" I belong to. For what it's worth, I've done both in the past & I'm between gigs right now, so I'd like to think that I'm as neutral as one can get without not being a musician at all. What I really don't like about this whole debate, is musicians hammering on each other for whatever reason. I think we have way too much in common for that, and should all be working together to make things better for all of us. There's way to much "stratification" in music beyond just the originals/covers issue (genres, sub-genres, etc.). If I ever had an original song that anybody liked well enough to want to cover it, I'd be flattered and encourage them on instead of wanting to extract a pound of flesh for myself. If every cover band in the country wanted to play one of my songs, I'd be happy & proud, & I'd try to go to as many bars as possible to watch as many as I could, cheer them on, & enjoy what they've managed to make out of what I started. Any little royalty check would be icing on the cake.