Am I right or wrong for this?

Que up I'm last pick I see a Zed top, Fizz mid, which end up switching early in the game, a Xayah jungle with Rakan as a support, I'm practicing as Sivir so I'm like oh shit I'm fucked especially when I see their team comp. It's as follows, Ekko top, Viktor mid, Olaf jungle, Thresh support ashe adc. I told them, okay so who's going to keep ekko away from me? We have no bruisers, who's going to take Viktor's magic damage, okay we have no tanks, oh but wait we have a Fizz building tanky yeah we're all set now right. What about Olaf that can't be cc, do we have any bruisers that can peel for me, no only assassins that late game won't be able to do shit against him. What about any kind of a front line, no because we're all squishy as fuck so nobody to stop Thresh from hooking me, no tank to tank Ashe's damage leaving me open for her to auto like nuts in team fights. But wait we have a fizz that's building tanky that fixes everything right lol. You did no damage I'm like because every time I tried coming to help I had olaf chase me all the way back to base lol. Can't you kite him, to some extent but my ult was used to initiate the team fight, so I don't have that he gets movement speed from his ult and I can only block one axe, so I'm kind of no can't kite him very much right now ntm I don't have items because I had a very defensive type support in rakan that brought ignite. Oh but at the end of the game I get flamed because I suck so bad and should uninstall the game........I'm like are you guys serious you all try some type of off-meta experimental game and we lost because of it and you all are flaming me???????