>>1380568False, motorbikes are more dangerous, pic related. This is probably because motorbikes are going much faster. Higher speeds are inherently more dangerous. And a motorcyclist doesn't have a metal cage to protect them like car drivers do.
Source for picture:
https://www.bbc.co.uk/news/uk-england-39856219Also here's a video that made national news a few years ago in the UK of a motorcyclist going 97mph and crashing and dying. Yes he's going too fast, I think the limit for that road is probably 60mph, but still, a bicycle would be going far slower and so an accident like this would be much less likely to happen. Skip to 2:47 to just see the crash -
https://www.youtube.com/watch?v=k_Zg0JYDUqM 