Purposely not grouping because you have the "fuck my team attitude" should be a bannable offense

Was 8/0 morde top lane, made my lane opponent my bitch, 1v2 constantly. Decided to go mid and noticed our Varus was just REFUSING to do anything we told him to. He insisted on staying bot instead of grouping with the team. This goes for his full damage shyvana duo who ended up going 6/12 because they had a kog, veigar. Oh, let's not get objectives even though my team is spam pinging me to go there. Honestly, fuck off. Not every game is carryable when you get shit like that on the table.