Plat enemies feel easy, but it feels like my teammates make it hard

Quite annoying where everyone either feeds and starts flaming everyone else, or people intentionally throw because they gave up really early in the game. One instance of this, is in my game as Rakan where I went 4/3/35. The game at 18 minutes was Xin and Trynd taking 2 inhibs because our jungler afk'd, and our top laner fed and started building "off-meta" items. In the beginning our TF did bad, but I kept showing our team we could win fights as long as we didn't make stupid mistakes and telling them it was an easily winnable game. The enemy took 2 barons, all 3 inhibs, and we were in base for a solid 25 minutes clearing minions, acing the enemy team 3-4 times. But, at that point where we were in that position of having to sit in base and ace them, worrying about 1 backdoor tryndamere and xin was ridiculous. If our top lane didnt say "gg" at 6 minutes, and opened top, which in turn made our jungler afk for 10 minutes, it was an extremely easy to win game with how well me and Jinx and TF ended up doing in the end. I feel like majority of my recent games in plat, were extremely easy to win, but all it takes is 1 or 2 people to give up early because they didnt "win" lane, while my perspective is that winning lane isn't a big deal at all, mid-game when skirmishes and objs start to take place is when its a big-deal.

tldr; quit worrying so much about winning lane, it's a team based game, and the team base idea starts to come in at 15-ish minutes usually. If you cant win lane, just dont LOSE it. Flaming teammates might as well be saying "hey, im doing bad, so im going to make others do bad with me." Play safe, buy EXTRA wards, farm under tower, the enemy shouldnt be able to easily dive you if you were doing that from the start when you realized you couldnt win the lane.