AD Carry, what the *bleep* happened?

As an AD carry main, I find myself coming back to this game as of late, only to realize that everything feels about a thousand times worse than it ever did before. The following write up is my assessment of the situation and why just exactly being an ADC currently sucks so bad:

One of the things I hate about being an ADC in this game right now is the lack of itemization in general for them. I feel like you have to build the same items over and over and over to be effective and even still your damage output is still comparatively crap.

Every single AD carry with the exception of Caitlyn feels like their range is just waaaaaaaaaaay to short to offer any benefit to the extreme lack of HP that is supposed to come from making you a glass cannon and on top of this the movepseed nerfs(buffs?)/overall removal of runspeed enhancing items in this game leaves my life as an ADC feeling slow, clunky, and constantly vulnerable to any of the 40+ other heroes with gap closing skills that just completely ignore run speed (Yasuo) .

My usual moba of choice is Dota 2, but I play league a lot to spend time with friends. I know there are a lot of fundamental differences between the two games, but with league lacking items like blink dagger or Dota 2's newly added dragon lance it just feels dumb being left with no other option than to cut down on your already mediocre damage output just to build pure HP/Armor/MR/survivability.

The worst part is, it never really use to feel this way to me. There use to be tons of nice movespeed items to help support the marksman role with the ability to run away better and chase better depending on what the situation called for. Now I feel like I literally need a head start to get anywhere with my team or they will get there long before me, and even in teamfights I often find my teammates slowly drifting ahead of me until eventually we're miles apart and much in the same way, I find enemies that don't want to deal with me simply walking away while I'm left there trying to chase them down only to find that even with +5%, +7%, boots of swiftness, whatever I'm still not fast enough enough to actually run someone down and kill them. Then the beefy DPS shows up and I'm even less equipped to run away. I've watched this happen time and time again, and even watched my own team run past me into the enemy and back away from the enemy before I can even get there. It seems like no matter what I do, I'm always left somewhere in the middle being the last one left behind and the first one quickly gobbled up when the situation turns.

Every marksman in this game leaves me wanting something akin to a phage, and yet phage remains a near useless item as it doesn't actually build into anything that would really benefit an AD carry anymore. Frozen mallet is built from something else. Trinity force has always been gold inefficient AF, and it got even worse as it now offers 0% crit chance and less movespeed than it use to.

I remember a long time ago they nerfed the beefy bruiser meta by equipping ADC's with tons of HP melting items (madred's, malady, wit's end, and (sort of) BotRK). Madred's being a godsend to the trash tier peace of crap known as BotRK. The max HP dealt as magic damage made it amazing against HP stackers, and all three of the items at the front of the list made quick work heavily armored tanks. Now we get BotrK which is like... oh... here's 4% of the targets current health in physical damage. Add a little more mediocre physical damage to your already mediocre amount of physical damage. Sure hope the enemy doesn't build armor or you somehow have access to a time machine to go back and pick Vayne or Kog-maw.

Maybe I'm dumb or I'm looking through my rose tinted goggles, but I swear I feel like as a whole over the years, so many things have been unnecessarily simplified, and so many other things have been unnecessarily complicated just in an attempt to add a new state of freshness to the game. Not all of the changes have been for the better. I just don't know what happened.

TL;DR Runspeed is key. Especially in a game without boots of travel or TP scrolls. Also it'd help if the itemization didn't suck.