Bronze troubles with trolls. Do we need a method of punishment during champ select?

So I'm trying to climb through Bronze, which means I'm playing ranked. I'm bronze. I make bad decisions. I screw up during laning phase. I don't watch my minimap quite as often as I should. I try to make plays and fail miserably and die a horrific death, but I'm trying. I understand when you get autofilled into a role you don't want, you have to do what you can there. Pick a champ that you're comfortable on that can do the role you've been assigned, play safe, and try to help your team with objectives. But when you get someone that gets autofilled, then proceeds to demand a different lane, stating that they are going to go there no matter what, then proceeding to ban the champ that laner has hovered, because the troll is told the laner doesn't want to switch roles with them? Then they pick a troll champion for their role AND the role that they are making a fuss for? This is ranked. If it's a normal, it's annoying, sure...but maybe they have a great play in their slot with the champ they have...but in ranked, you have to play what you're given and if that person can't give a valid reason for their choices, they are just trolling. That's part of ranked. Learn more about the game as a whole, and learn to play as a team. Now I know, "#BronzeThings" but seriously...how is this even remotely acceptable behavior? This is blatant trolling, and there not being a report option during champion select means these people are perfectly free to do this without fear of repercussion, unless we just lose the game cause we are going into a 4v5 with our 5th likely just feeding, based on their current behavior. While this isn't cool in a Normal, in ranked it costs you LP and sets you back, not because you and your team played bad or got outplayed, but because RNG placed this troll in your team that completely trashes your team's chances at winning. Could you still win? sure. If you're maybe a gold+ player that somehow got dropped into bronze. But for us Bronzies trying to get better and climb, it's absolute hell. Before people start flaming and going off about "carry better" and "get gud scrub", I enjoy playing Support, which means carrying isn't exactly high in my role. Can a support carry? Sure! However your ADC tends to hate you for it, and now YOU'RE the troll too. Flip side is, no matter how hard I feed my adc, someone just running down mid every 30 seconds and feeding the enemy mid laner, is going to out power my adc. "Just dodge when you have a troll, duh!". This isn't always acceptable, and it's complete trash that this is even a recommended approach. In your promos, it's an automatic loss. So you're FORCED to play this game for the miracle 1% chance of winning, or just accept that you are failing your promos. Outside of promos, you have to lose 10 LP to "dodge" and sit around for a 15m+ queue timer (if you're getting these people often, and in bronze, they are almost ALWAYS in your game lobby). I have friends in Silver, Gold, and a friend in Diamond. They each tell me that this kind of behavior still occurs in their divisions, though not quite as often as in bronze. That makes this an issue that spans through a very LARGE portion of the ranked community. I guess what I'm getting at, is "Why isn't there a way to kick/report/punish these trolls that are hampering my ability to enjoy the game, and hurting my chances at climbing (more-so than I do to myself already, since I suck at this game)?"