I liked your whole post but I did want to highlight this one sentence. Anyone complaining about long lines at WDW should never, ever step foot in Legoland. I think it’s a really cool park and I loved the miniature area but the lines for rides were outrageous when we were there in June. The queues were also not setup like Disney so the wait was both hot and boring.
We just got back from WDW and while the crowds were bigger than I expected for the time of year they were very manageable. We did nearly every ride and attraction in all 4 parks over 8 days and never waited more than 25 minutes for anything with a little creative FP planning. The only exception was Rockin Roller Coaster when half of my party went on because the sign for the standby line said 20 minutes but it was actually broken and the line ended up being close to an hour. The CM at the front apologized and said they were trying to fix it. I was not personally in that line so I don’t count it
I also agree with your general point that the attitude and tone from some people here is over the top jaded. It amazes me that some people have such a negative experience but still visit every year or multiple times a year. If I had half the issues some people claim to have I’d never be back. I can tell you that the standard response will be that the people complaining are true fans of the parks and upset to see things not hold up to the standards of the past. You may also be told that if your oldest trip that you remember is 2010 that you don’t have a point of reference for the true golden age of WDW in the 80s and 90s. This is a somewhat valid point. The overall quality has gone down hill (with the rest of society). If you compare WDW of today to most other theme or amusememt parks it’s still the gold standard (along with Universal) but if you compare WDW to itself 25 years ago it doesn’t stand up as well.