As someone who mostly lurks and really has no skin in the game, from my perspective(operative phrase here) the original response to your post was kind of condescending, but I don't it was over the line or out of place for an internet message board and I think you may have read a little deeper into it than what it actually was (ultimately a difference of opinion on K'Andre's NHL readiness and not a personal quip aimed at you).
If you had responded to that by simply saying: "I don't know who pissed in your cereal this morning, but it is extremely possible that K'Andre will see NHL minutes this year, even if it's just a few games" You would have both defended your point and would have been seen as the level headed one.
The second you start throwing around "I see your little clique! I'm not someone to be messed with, deal with it!!" No one is going to take you seriously or listen to your points (which I personally believe have merit)
As for the stuff about "protected class", from my perspective, everyone on here is respectful if they are engaged respectfully. We have plenty of posters with "old-school" views and "progressive" views that get along quite famously. It's the people that fly off the handle and become belligerent because they don't think their opinions are respected that seemed to get shunned.
No one is going to agree with us 100% of the time, but if we argue our opinions with dignity and respect, it will most likely be returned and we will have the best chance of getting someone else to consider our points of view.