He only turned left AFTER you'd squeezed him onto the grass. He was just steering back onto the track, and you'd left an impossibly small gap, such that's there no way he could realisticly be expected to manouver off the grass into that gap without hitting you.
Whether you actually left a car width or not I can't tell from the video, but if you did, you certainly didn't leave a car width plus enough margin to allow him to safely get passed. Remember you're not racing against Lewis Hamilton in real life, you're racing against an amateur gamer who could be driving by wiggling their joystick in front of the TV while using Bumper cam mode.
Watch your on board view from 5s until the impact, you're clearly angling across the track from left to right, in the process squeezing him into an impossibly small gap. Watch the black lines down the center of the track.
He didn't have plenty of opportunity to back out, he was gradually squeezed off the track. It's perfectly resonable to expect the driver moving across to stop coming across before the gap's too small to safely go through. No way he had a chance to move to the left, by the time Supafly had moved across to close the gap it was way too late to switch sides.
If he was clearly blocked, then yes. But it was such a vague meander down the middle then slowly drifting right to squeeze out the passing car he's just asking for trouble.
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