The fact is that you are constantly arguing with guild leaders about their decisions and undermining them at every turn. Then pushing constantly for raids when people are not geared for them. All I have ever heard from you is constant bickering and moaning about minor things. I can't comment on loot rolls as I wasn't there, and without seeing the full set of stats for the item it's hard to distinguish whether or not it was best suited for a particular class.
There was no mention of a raiding alliance between PCG and Corrosion apart from the usual weekly Akala raid. Anything else would have been purely meant for the distant future, as not very many members in either guild are geared for them at all. As soon as you brought your alt to the guild, the first thing you mentioned was doing raids. Why even mention them if your intention of joining was to have fun? That is for a guild leader to decide anyway, at the right time when people feel it is time for them to progress.
Yes I have been mentioning endgame content in recruitment messages as that is the only way to get people in the guild who are at level 50 and intend to do more than T1's/2's all the time because there is a limit on what level of gear you can get in them. Also it distinguishes us from other levelling guilds out there who lose members once they reach max level.
Plus, it is an option. If people want to just take things casually and not even bother with raiding then it is up to them. We will never be, nor do we want to be, a hardcore guild. I have been recruiting people of all levels not just level 50 as this is meant to be a social guild first and foremost, without all of the arguing, pettiness, and egotism...
I think yes it would probably be best if you either gave the game a rest, or switched to a different shard/guild, as you are clearly one who likes to upset the apple-cart just for the sake of it, else there wouldn't be a constant moan from you about something that happened weeks/months ago. If you are unhappy and want to do raiding, then go to a hardcore guild who can offer you that, not continually airing your grievances to guild leaders all the time.